POWERFLOW Diesel Pickup Exhaust.pdf - Grand Rock Truck ...

2 

TRUCK EXHAUST SYSTEMS 

18" x 26" Poster 

This multi-color poster is a great way to 

promote sales of exhaust parts. 

Order Part No. POSTER 

A great way to display and sell exhaust parts. 

Holds 4 pcs. of 5" dia. & 1 pc. of 4" dia. 

(not included). 

For safety reasons, the parts you choose to 

display must not exceed 60" tall. 

Approximate size 24" x 20". 

Order Part No. DISPLAY 

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POWERFLOW EXHAUST SYSTEMS 

STANDARD SINGLE - OE EXIT LOCATION 

• Kits fit all wheelbases 

• Systems come complete in one box and can ship 

UPS/FedEx Ground 

• Polished 304 Stainless Slash-Cut Tip included 

with systems 

• Hangers are heavier 1/2” diameter and utilize 

all OE locations 

• Pyrometer fitting in turbo pipe 

• 5" system is 4" to muffler, 5" after 

POWERFLOW 

Performance Diesel Pickup Exhaust Systems 

• BOLT-ON HORSEPOWER, TORQUE, AND FUEL ECONOMY 

Their Clamp on left VS Ours on the right 

NOTE: It is illegal to remove catalytic converters 

on vehicles so equipped. Consult a professional 

to determine options. 

You Can’t Afford NOT to Upgrade Your Exhaust 

• Bolt-On a reduction in 

Exhaust Temperature 

• Larger pipe diameters than OE 

• Straight-Thru, unrestricted muffler 

4”and 5” Turbo-Back 

Single Systems - Aluminized 

Part No. Diameter Application 

FORD FORD 

PS-9497-A4 4" 94-97 FORD 7.3 POWERSTROKE 



PS-6.0-A4 4" 03-05 FORD 6.0 POWERSTROKE 

PS-6.0-A5 5" 03-05 FORD 6.0 POWERSTROKE 

DODGE DODGE 

DC-9402-A4 4" 94-02 DODGE 5.9 CUMMINS 

DC-9402-A5 5" 94-02 DODGE 5.9 CUMMINS 

DC-0304-A4 4" 03-04½ DODGE 5.9 CUMMINS 

WITH 235 - 305 HP 

DC-0304-A5 5" 03-04½ DODGE 5.9 CUMMINS 

WITH 235 - 305 HP 

DC-600-A4 4" 04½-06 WITH 325 HP OR 

600 SERIES HIGH OUTPUT 

DC-600-A5 5" 04½-06 WITH 325 HP OR 

600 SERIES HIGH OUTPUT 

GM GM 

GM-0004-A4 4" 00-04 GM 6.6 DURAMAX 

00-07 Classic GM DURAMAX 

NOT FOR LLM ENGINE 

3

4 

• Gives Diesel Pickups that “Big Rig” look! 

• Great flow—improved performance. 

• Functional—Routes exhaust fumes above and away from livestock, 

car haulers, and cargo where diesel smoke is unwanted 

• Select many different exhaust stack styles and lengths to use with 

this system (stacks not included with kits) 

(Stack Not included) 

Part # 

Diameter 

of Stack 

Inlet 

Diameter 

DPU-4SK 4" 4" 

DPU-5SK 5" 4" 

DPU-6SK 6" 4" 

DPU-7SK 7" 4" 

DPU-5SK-5I 5" 5" 

DPU-6SK-5I 6" 5" 

DPU-7SK-5I 7" 5" 

Stack brackets included 

NOTE: on ALL Stack Kits that 

are 6"or 7", order SK, SP or SBH 

stacks. These are reduced to 5" 

OD at the bottom. 

STACK KITS 


12" 

Premium 304 

Stainless Flex 

Everything included except chrome stacks. Down Pipes, Muffler and Intermediate Pipe not included with these kits. 

4" ID 

• Kit includes 2 bright stainless unistrap clamps to secure stacks 

• Quality AccuSeal heavy gauge band clamps included in kits

STACK KITS 

• Gives Diesel Pickups that “Big Rig” look! 

• Great flow—improved performance. 

• Functional—Routes exhaust fumes above and away from livestock, 

car haulers, and cargo where diesel smoke is unwanted 

• Select many different exhaust stack styles and lengths to use with 

this system (stacks not included with kits) 

Part # 

Diameter 

of Stack 

Inlet 

Diameter 

SPU-4SK 4" 4" 

SPU-5SK 5" 4" 

SPU-6SK 6" 4" 

SPU-7SK 7" 4" 

SPU-5SK-5I 5" 5" 

SPU-6SK-5I 6" 5" 

SPU-7SK-5I 7" 5" 

NOTE: on ALL Stack Kits that are 6"or 7", 

order SK, SP or SBH stacks. These are 

reduced to 5" OD at the bottom. 



12" 

Premium 304 

Stainless Flex 

• Kit includes bright stainless unistrap clamp to secure stack 

• Quality AccuSeal heavy gauge band clamps included in kits 

Everything included except chrome stacks. Down Pipes, Muffler and Intermediate Pipe not included with these kits. 

4" ID 

5

6 


Complete Turbo To Stack Kits. Aluminized 

Part No. Diameter 

Application 

FORD FORD 

PS-9497-4SK 4" 94-97 FORD POWERSTROKE 




PS-9902-4SK 4" 99-02 FORD 7.3L POWERSTROKE 




PS-6.0-4SK 4" 03-05 FORD 6.0L POWERSTROKE 




GM GM 

GM-0004-4SK 4" 00-04 GM 6.6L DURAMAX NO LLM ENGINE 




00-07 GM Classic DURAMX 

DODGE DODGE 

DC-9402-4SK 4" 94-02 5.9L CUMMINS 

DC-9402-5SK 5" 94-02 5.9L CUMMINS 

DC-9402-6SK 6" 94-02 5.9L CUMMINS 

DC-9402-7SK 7" 94-02 5.9L CUMMINS 

DC-0304-4SK 4" 03-04½ 5.9L CUMMINS W/235-305HP 




DC-600-4SK 4" 04½-06 5.9L CUMMINS 600 SERIES 

325HP OR 600 SERIES HIGH OUTPUT 








O.D. 

DIAMETER 

A LENGTH 

90˚ 

O.D. 

DIAMETER 

STACK KITS 

B 

L 

E 

N 

G TH 

(Stack Not included)

STACK KITS 

Complete Turbo To Stack Kits. Aluminized 

Part No. Diameter 

Application 

FORD FORD 

PS-9497-S4SK 4" 94-97 FORD POWERSTROKE 




PS-9902-S4SK 4" 99-02 FORD 7.3L POWERSTROKE 




PS-6.0-S4SK 4" 03-05 FORD 6.0L POWERSTROKE 




GM GM 

GM-0004-S4SK 4" 00-04 GM 6.6L DURAMAX NO LLM ENGINE 




00-07 GM Classic DURAMAX 

DODGE DODGE 

DC-9402-S4SK 4" 94-02 5.9L CUMMINS 




DC-0304-S4SK 4" 03-04½ 5.9L CUMMINS W/235-305HP 




DC-600-S4SK 4" 04½-06 5.9L CUMMINS 600 SERIES 

W/325HP OR 600 SERIES HIGH OUTPUT 








O.D. 

DIAMETER 

A LENGTH 

90˚ 

O.D. 

DIAMETER 

7 

B 

L 

E 

N 

G TH

8 

SINGLE EXIT EXHAUST COMPONENTS 

Part No. Description 

DODGE 

D41 94-02' Dodge rear tailpipe 4" hanger 

D42 94-02' Dodge rear muffler 4" hanger 

D43 94-02' Dodge front muffler 4" hanger 

D44 94-02' Dodge rear turbo 4" hanger 

D51 94-02' Dodge rear tailpipe 5" hanger 


D31 03-07' Dodge front 4" hanger 

D32 03-07' Dodge front of muffler 4" hanger 


D34 03-07' Dodge rear of tailpipe 4" hanger 

D33-5 03-07' Dodge rear muffler 5" hanger 

D34-5 

GM 

03-07' Dodge rear tailpipe 5" hanger 

G40 00-07' (classic) front 4" hanger 

G41 00-07' (classic) mid-front pipe 4" hanger 

G42 00-07' (classic) font muffler 4" hanger 

G43 00-07' (classic) rear muffler 4" hanger 

G44 

FORD 

00-07' (classic) rear tailpipe 4" hanger 

F94-41 94-97' rear tailpipe 4" hanger 

F94-44 94-97' rear muffler 4" hanger 

F41 99-07' rear tailpipe 4" hanger 

F42 99-07' front of muffler 4" hanger 

F43 99-07' rear muffler 4" hanger 

F51 99-07' rear tailpipe 5" hanger 

F53 99-07' rear muffler 5" hanger 

* All hangers are ZINC plated.** 

TIPS 

P4-12ESWC 

P5-12ESWC 

Brackets and Hangers 

Tailpipes, Mid-Pipes, Mufflers and Tips 


DODGE 

D4A 4" Dodge Over Axel Pipe (Aluminized) 

D5A 5" Dodge Over Axel Pipe (Aluminized) 

S4-60EXA 4" x 60" ALUMINIZED TUBE OD/ID 

GM 

GM-04-MP 00-07' (classic) 4" Mid-Pipe 

GM-4A 00-07' (classic) 4" Over Axel Pipe 

S4-48EXA 4" x 48" ALUMINIZED TUBE OD/ID 

S4-24EXA 

FORD 

4" x 24" ALUMINIZED TUBE OD/ID 

F4A 94-07 4" Over Axel Pipe 

F5A 99-07 5" Over Axel Pipe 

PS-9902-5DEG 99-03' 7.3L Ford Power Stroke Mid-Pipe 

S4-60EXA 

MUFFLERS 

4" x 60" ALUMINIZED TUBE OD/ID 

M-824 TYPE 1 8" x 15" 4" IN/OUT 

D5M TYPE 1 8" x 15" 4" IN 5" OUT 

QPM-639-4 Quiet Performance Muffler 4" IN/OUT, 6" x 29" Body 

QPM-639-5 Quiet Performance Muffler 4" IN, 5" OUT, 6" x 29" Body 

IM-518 5" x 18" Internal Muffler 

IM-418 4" x 18" Internal Muffler 

4" x 12" MITER S.S. TIP 

5" x 12" MITER S.S. TIP 

* All tailpipes and mid-pipes are made out of 16 gauge Aluminized steel.**

DUAL & SINGLE STACK KIT COMPONENTS 


Y-PIPE 

DPU-4YA 4" Y-Pipe Used in 4" Stack Kit 

DPU-5YA 5" Y-Pipe Used in 5, 6 and 7" Stack Kits 

DPU-5YA-5I 5" Y-Pipe with 5" Inlet Used in 5, 6 and 7" 5I Stack Kits 

S-PIPE 

SPU-4A 4" Double Bend Pipe Used in 4" Stack Kit 

SPU-5A 5" Double Bend Pipe Used in 5, 6 and 7" Stack Kits 

SPU-5A-5I 

ELBOW 

5" Double Bend Pipe with 5" Inlet Used in 5, 6 and 7" 5I Stack kits 

L490-9.512SA 4" Inlet Elbow Used in all Stack Kits 

L490-1232A 4" Elbow Used in 4" Stack Kit 

L590-1012.5SA 5" Inlet Elbow Used in 5, 6 and 7" 5I Stack Kits 

L590-1232A 

BRACKET 

5" Elbow Used in 5, 6 and 7" Stack Kits 

PUB-L Left Stack Mounting Bracket For Stack Kit 

PUB-R Right Stack Mounting Bracket For Stack Kit 

CLAMP 

US-4 4" S.S. ACCUSEAL CLAMP 



US-7 

FLEX 

7" S.S. ACCUSEAL CLAMP 

SF-412 4" x 12" .018 S.S. FLEX 

SF-512 5" x 12" .018 S.S. FLEX 

* ALL elbows, y-pipes, and s-pipes are made up of 16 gauge Aluminized Steel.** 


TURBO PIPES 

DODGE 

D4T 4" Turbo Pipe for 94-02' year Dodges with 5.9L 

DC94024THX40 HX40 Turbo Pipe 94-02 DODGE HIGH OUTPUT 

DC-0304-4T 4" Turbo Pipe for 03-04.5' year Dodges with 5.9L S/O 

DC-600-4T 

GM 

4" Turbo Pipe for 04.5-07' year Dodges with 5.9L H/O (600 series) 

GM-4TP 

FORD 

4" Front Pipe for 00-07' (Classic) DURAMAX {LB7, LBZ, LLY engines} 

PS-9497TC 3" Turbo Pipe Kit for 94-97' Ford Power Strokes with 7.3L (2pc turbo pipe kit) 

PS-99-4T 4" Turbo Pipe Kit for 99-03.5' Ford Power Strokes with 7.3L (2pc turbo pipe kit) 

PS-6.0-TPMP 3.5" to 4" Turbo Pipe Kit for the-9703.03.5 (2pc turbo pipe kit) 

95-97PSCP-3 3" Mid -Pipe for 94-97' 7.3L Power Stroke (Bolts to CAT) (Used in PS-9497TC) 

95-97PSCP-3 3" Turbo Pipe for 94-9' 7.3L Power Stroke (Used in PS-9497TC) 

F4TP 4" Turbo Pipe for 99-03.5' 7.3L Power Stroke (Used in PS-99-4T) 

F4MP 4" Mid-Pipe for 99-03.5' 7.3L Power Stroke (Used in PS-99-4T) 

PS-6.0-MP 4" Reduced to 3.5" Mid-Pipe for 03.5-07' 6.0L Power Stroke (Used in PS-6.0-TPMP) 

PS-6.0-TP 3.5" Turbo Pipe for 03.5-07' 6.0L Power Stroke (Used in PS-6.0-TPMP) 

* All turbo pipes are made up of 16 gauge Aluminized Steel.* 

** All turbo pipes come with a Pyrometer fitting.** 

9

10 

5" OD 

Bottom 

AUSSIE STACKS 

Cool NEW Look! 

30° bend with close cut. 

Distinctively Different! 

5" & 6" diameter and NEW 7" Diameter!. 

5" OD 

Bottom 

Dia. Length 

Chrome 

Part No. 

5" 36" A5-36SBC 

5" 48" A5-48SBC 

5" 60" A5-60SBC 

6" Reduced to 5" OD 

Dia. Length 

Chrome 

Part No. 

6" 36" SA6-36SBC 

6" 48" SA6-48SBC 

6" 60" SA6-60SBC 

7" Reduced to 5" OD for 2008!! 

Dia. Length 

Chrome 

Part No. 

7" 36" SA7-36SBC-5 

7" 48" SA7-48SBC-5 

7" 60" SA7-60SBC-5 

* Raw stacks are available for 

alternative coatings. Please call 

for prices and availability

CURVED STACKS 

Dia. 

3" through 5" Diameter 

Length 

Aluminized 

Part No. 

I.D. INLET 

Chrome 

Part No. 

Aluminized 

Part No. 

O.D. INLET 

Chrome 

Part No. 

3" 12" K3-12EXA K3-12EXC K3-12SBA K3-12SBC 


3-1/2" 12" K35-12EXA K35-12EXC K35-12SBA K35-12SBC 

3-1/2" 24" — K35-24EXC K35-24SBA K35-24SBC 

3-1/2" 36" — K35-36EXC K35-36SBA K35-36SBC 

3-1/2" 48" — K35-48EXC — K35-48SBC 







4" 72" — K4-72EXC — K4-72SBC 

4" 84" — K4-84EXC — — 

4" 96" — K4-96EXC — — 






5" 53" — — K5-53SBA K5-53SBC 


5" 72" — K5-72EXC — K5-72SBC 

5" 84" — K5-84EXC — K5-84SBC 

5" 96" — K5-96EXC — K5-96SBC 

5" 108" — K5-108EXC — — 

5" 114" — K5-114EXC — — 

5" 120" — K5-120EXC — — 



for prices and availability 

I.D. 

O.D. 

L 

E 

N 

G TH 

L 

E 

N 

G TH 

11

12 

STRAIGHT STACKS 

Dia. 

L 

E 

N 

G TH 

Length 

Aluminized 

Part No. 

I.D. INLET 

Chrome 

Part No. 

O.D. INLET 

Aluminized 

Part No. 

Chrome 

Part No. 

4" 12" S4-12EXA S4-12EXC — — 

4" 18" S4-18EXA S4-18EXC — — 

4" 24" S4-24EXA S4-24EXC S4-24SBA S4-24SBC 



4" 60" S4-60EXA S4-60EXC S4-60SBA — 


5" 12" S5-12EXA S5-12EXC — — 

5" 18" S5-18EXA S5-18EXC — — 





5" 72" S5-72EXA S5-72EXC S5-72SBA — 




I.D. 

L 

E 

N 

G TH 

O.D. 

4" and 5" Diameters 

ANGLE CUT STACKS 

4" and 5" Diameters 

Dia. Length 

I.D. INLET 

Chrome 

Part No. 

O.D. INLET 

Chrome 

Part No. 

4" 36" P4-36EXC P4-36SBC 

4" 48" P4-48EXC P4-48SBC 

4" 60" P4-60EXC P4-60SBC 

5" 36" P5-36EXC P5-36SBC 

5" 48" P5-48EXC P5-48SBC 

5" 60" P5-60EXC P5-60SBC 

5" 72" P5-72EXC P5-72SBC 

5" 84" P5-84EXC — 

5" 96" P5-96EXC — 

5" 108" P5-108EXC — 

5" 114" P5-114EXC — 

5" 120" P5-120EXC — 




L 

E 

N 

G TH 

I.D. 

L 

E 

N 

G TH 

O.D.

ALL 6" DIAMETER STACKS 

Reduced 

to 5" 

OD 

Reduced 

to OD 

Bottom 

Curved 

Dia. Length 

*REDUCED 

TO 5" O.D. 

BOTTOM 

Chromed 

Part No. 

6" 24" SK6-24SBC 

6" 36" SK6-36SBC 

6" 48" SK6-48SBC 

6" 60" SK6-60SBC 

*Swedged. No welds. 




Dia. 

Curved 

Length 

Welded on reducers 

REDUCED 

TO 5” O.D. 

Chrome 

Part No. 

7" 24" SK7-24SBC-5 

7" 36" SK7-36SBC-5 

7" 48" SK7-48SBC-5 

7" 60" SK7-60SBC-5 

✩ Limited Stock, call for availability 




Dia. 

Angle Cut 

Length 

REDUCED 

TO 5” O.D. 

BOTTOM 

Chromed 

Part No. 

6" 24" SP6-24SBC 

6" 36" SP6-36SBC 

6" 48" SP6-48SBC 

6" 60" SP6-60SBC 

*Swedged. No welds. 




Reduced 

to 5" 

OD 

ALL 7" DIAMETER STACKS 

Dia. 

Angle Cut 

Length 

REDUCED 

TO 5" O.D. 

Chrome 

Part No. 

7" 36" SP7-36SBC-5 

7" 48" SP7-48SBC-5 

7" 60" SP7-60SBC-5 


✩ Limited Stock, call for availability 




Reduced 

to OD 

Bottom 

13

14 

6" Diameter 

Length 

5" 5" 

I.D. O.D. 

REDUCED 

TO 5" O.D. 

36" SBH6-36SBC* 

48" SBH6-48SBC* 

60" SBH6-60SBC* 

*We recommend a 6" stack mount 

bracket on the 6" portion of the stack. 

Swedged, No Welds. 

REDUCED TO 

I.D. BOTTOM 




7" 7" 

REDUCED TO 

O.D. BOTTOM 

REDUCED TO 

I.D. BOTTOM 

BULL HORN STACKS 

5" Diameter 

Length 

6" 6" 

REDUCED TO 

O.D. BOTTOM 

O.D. 

BOTTOM 

36" BH5-36SBC 

48" BH5-48SBC 

60" BH5-60SBC 

72" BH5-72SBC 




7" Diameter 

Length 

REDUCED 

TO 5" O.D. 

36" SBH7-36SBC5* 

48" SBH7-48SBC5* 

60" SBH7-60SBC5* 

* We recommend a 7" stack mount 

bracket on the 7" portion of the stack. 




for prices and availability

EXHAUST DIVERTERS 

4" OD 

HDT-4A 

Tube Type 

4" OD 

4" OD 

• Perfect for splicing in sections 

• 16ga Aluminized Steel 

90° TANGENT CUT ELBOWS 

O.D. 

DIAMETER 

A LENGTH 

90˚ 

O.D. 

DIAMETER 

B 

L 

E 

N 

G TH 

• Cut at tangent NO straight 

• Ideal for welding & repairing 

• OD/OD only 

5" OD 

HDT-5A 

Tube Type 

5" OD 

5" OD 

REPAIR SECTIONS 

Dia. Length Part Number 

4" 12" RS-412A 

4" 18" RS-418A 

4" 24" RS-424A 

4" 36" RS-436A 

4" 48" RS-448A 

5" 12" RS-512A 

5" 18" RS-518A 

5" 24" RS-524A 

5" 36" RS-536A 

5" 48" RS-548A 

Dia Length Center Line Aluminized 

A&B Radius Part# 

3" 5" 3 1 /2" L390-0505SA 

3 1 /2" 6 3 /4" 5" L3590-675675SA 

4" 6 1 /2" 4 1 /2" L490-6565SA 

5" 8" 5 1 /2" L590-0808SA 

6" 10" 7" L690-1010SA 

7" 11 1 /2" 8" L790-1212S* 

8" 20" 12" L890-2020S* 

* Cold rolled steel and make to order, call for leadtime 

15

15° Elbows 

Dia. Length 

A&B 

Dia. 

Length 

A&B 

Dia. Length 

A&B 

Center Line 

Radius 

45° Elbows 

Center Line 

Radius 

60° Elbows 

Center Line 

Radius 

I.D. O.D. 

Aluminized 

Part No. 

Aluminized 

Part No. 

Aluminized 

Part No. 

I.D. O.D. O.D. O.D. 

I.D. O.D. 

O.D. O.D. 

Aluminized 

Part No. 

3" 4" 3-1/2"" L315-0404A L315-0404SA 

3-1/2" 4" 5" L3515-0404A L3515-0404SA 

4" 4" 4-1/2" L415-0404A L415-0404SA 

5" 4" 5-1/2" L515-0404A L515-0404SA 

3" 4" 3-1/2" L330-0404A L330-0404SA 

3-1/2" 4" 5" L3530-0404A L3530-0404SA 

Chrome 

Part No. 

Chrome 

Part No. 

Aluminized 

Part No. 

Chrome 

Part No. 

3" 8" 3-1/2" L360-0808A — L360-0808SA — 

3-1/2" 8" 5" L3560-0808A — L3560-0808SA — 

16 

30° Elbows 

Dia. Length 

A&B 

Center Line 

Radius 

I.D. O.D. 

Aluminized 

Part No. 

O.D. O.D. 

Aluminized 

Part No. 

4" 4" 4-1/2" L430-0404A L430-0404SA 

5" 4" 5-1/2" L530-0404A L530-0404SA 

3" 8" 4" L345-0808A L345-0808C L345-0808SA — 

3-1/2" 9" 5" L3545-0909A — L3545-0909SA — 

Aluminized 

Part No. 

4" 8" 4-1/2" L460-0808A — L460-0808SA — 

4" 12" 4-1/2" L460-1212A — L460-1212SA — 

5" 10" 5-1/2" L560-1010A L560-1010C L560-1010SA L560-1010SC 

5" 16" 5-1/2" L560-1616A — L560-1616SA — 

O.D. 

O.D. 

DIAMETER 

DIAMETER 

O.D. O.D. 

A LENGTH 

A LENGTH 

4" 6" 4-1/2" L445-0606A — L445-0606SA — 

4" 9" 4-1/2" L445-0909A L445-0909C L445-0909SA L445-0909SC 

4" 12" 4-1/2" L445-1212A — L445-1212SA — 

5" 8" 5-1/2" L545-0808A L545-0808C L545-0808SA L545-0808SC 

5" 12" 5-1/2" L545-1212A L545-1212C L545-1212SA L545-1212SC 

6" 15" 6" L645-1515A L645-1515C L645-1515SA L645-1515SC 

Chrome 

Part No. 

ELBOWS 

B 

L 

B 

L 

E 

N 

G 

TH 

I.D. 

DIAMETER 

E 

N 

G 

TH 

O.D. 

DIAMETER

90° ELBOWS 

O.D. 

DIAMETER 

O.D. 

DIAMETER 

B LENGTH 

90˚ 

I.D. 

DIAMETER 

NOTE: Leg lengths are 

measured to the backside, 

not center line 

BA 

LENGTH 

90˚ 

O.D. 

DIAMETER 

A 

L 

E 

N 

G TH 

BA 

L 

E 

N 

G 

TH 

Dia. 

Dia. 

Length 

A&B 

Length 

A&B 

Center Line 

Radius 

Center Line 

Radius 

Aluminized 

Part No. 

Aluminized 

Part No. 

I.D. O.D. 

O.D. O.D. 

Chrome 

Part No. 

3" 7" 4" L390-0707A L390-0707C 

3" 10" 4" L390-1010A L390-1010C 

3" 14" 4" L390-1414A L390-1414C 

3-1/2" 8" 5" L3590-0808A — 

3-1/2" 12" 5" L3590-1212A L3590-1212C 

3-1/2" 16" 5" L3590-1616A — 

4" 8" 4-1/2" L490-0808A L490-0808C 

4" 10" 4-1/2" L490-1010A L490-1010C 

4" 12" 4-1/2" L490-1212A L490-1212C 

4" 15" 4-1/2" L490-1515A L490-1515C 

4" 18" 4-1/2" L490-1818A L490-1818C 

4" 18 x 29" 4-1/2" L490-1829A L490-1829C 

5" 10" 5-1/2" L590-1010A L590-1010C 

5" 12" 5-1/2" L590-1212A L590-1212C 

5" 15" 5-1/2" L590-1515A L590-1515C 

5" 18" 5-1/2" L590-1818A L590-1818C 

5" 18 x 32" 5-1/2" L590-1832A L590-1832C 

5" 13.5" 8 L590-1313A-8 — 

5" 17.5" 8 L590-1818A-8 — 

6" 13" 7" L690-1313A L690-1313C 

6" 24" 7" — L690-2424C 

Chrome 

Part No. 

3" 6" 4" L390-0606SA — 

3" 7" 4" L390-0707SA — 

3" 10" 4" L390-1010SA L390-1010SC 

3" 14" 4" L390-1414SA L390-1414SC 

3-1/2" 8" 5" L3590-0808SA — 

3-1/2" 12" 5" L3590-1212SA L3590-1212SC 

3-1/2" 16" 5" L3590-1616SA — 

4" 6" 4-1/2" L490-0606SA — 

4" 8" 4-1/2" L490-0808SA L490-0808SC 

4" 10" 4-1/2" L490-1010SA L490-1010SC 

4" 12" 4-1/2" L490-1212SA L490-1212SC 

4" 15" 4-1/2" L490-1515SA L490-1515SC 

4" 18" 4-1/2" L490-1818SA L490-1818SC 

4" 18 x 29" 4-1/2" L490-1829SA L490-1829SC 

5" 8" 5-1/2" L590-0808SA — 

5" 10" 5-1/2" L590-1010SA L590-1010SC 

5" 12" 5-1/2" L590-1212SA L590-1212SC 

5" 15" 5-1/2" L590-1515SA L590-1515SC 

5" 18" 5-1/2" L590-1818SA L590-1818SC 

5" 18 x 32" 5-1/2" L590-1832SA L590-1832SC 

5" 13.5" 8 L590-1313SA-8 — 

5" 17.5" 8 L590-1818SA-8 — 

6" 13" 7" L690-1313SA L690-1313SC 

6" 24" 7" — L690-2424SC 

17

CONNECTORS I.D.-O.D. 

18 

I. D. 

DIAMETER 

Dia. 

Length 

LENGTH 

Aluminized 

Part No. 

Chrome 

Part No. 

3" 6" CN-36A — 

3-1/2" 6" CN-356A — 

4" 6" CN-46A — 

5" 6" CN-56A CN-56C 

6" 6" CN-66A CN-66C 

O. D. 

DIAMETER 

LENGTH 

COUPLERS & CONNECTORS 

I. D. 

DIAMETER 

O. D. 

DIAMETER 

COUPLERS I.D.-I.D. 

Dia. 

O.D. 

Dia. 

Length 

I. D. 

DIAMETER 

Aluminized 

Part No. 

Length 

LENGTH 

Chrome 

Part No. 

3" 8" CP-38A — 

3-1/2" 8" CP-358A CP-358C 

4" 8" CP-48A CP-48C 

5" 8" CP-58A CP-58C 

6" 8" CP-68A CP-68C 

7" 8" _ CP-78C 

CONNECTORS O.D.-O.D. 

Aluminized 

Part No. 

3" 8" S3-8SBA 

3-1/2" 8" S35-8SBA 

4" 8" S4-8SBA 

5" 8" S5-8SBA 

6" 8" S6-8SBA 

O. D. 

DIAMETER

REDUCERS 

O.D. Diameter 

I.D. 

DIAMETER 

REDUCERS O.D.-I.D. 

I.D. Diameter 

Reducers 

Length 

Aluminized 

Part No. 

Chrome 

Part No. 

3-1/2" 3" 8" R35O-3IA — 

4" 3" 8" R4O-3IA — 

4" 3-1/2" 8" R4O-35IA R4O-35IC 

5" 4" 8" R5O-4IA R5O-4IC 

6" 4" 8" R6O-4IA — 

6" 5" 8" R6O-5IA R6O-5IC 

7" 5" 8" — R70-5IC 

I.D. Diameter 

LENGTH 

I.D. Diameter 

Reducers 

Length 

O.D. 

DIAMETER 

I.D. Diameter 

REDUCERS I.D.-I.D. 

Aluminized 

Part No. 

REDUCERS I.D.-O.D. 

O.D. Diameter 

Reducers 

Length 

Aluminized 

Part No. 

Chrome 

Part No. 

4" 3" 8" R4I-3OA — 

4" 3-1/2" 8" R4I-35OA — 

5" 4" 8" R5I-4OA R5I-4OC 

6" 4" 8" R6I-4OA — 

6" 5" 8" R6I-5OA R6I-5OC 

7" 5" 8" — R7I-5OC 

Chrome 

Part No. 

3-1/2" 3" 8" R35I-3IA — 

4" 3" 8" R4I-3IA — 

4" 3-1/2" 8" R4I-35IA — 

5" 4" 8" R5I-4IA R5I-4IC 

6" 4" 8" R6I-4IA — 

6" 5" 8" R6I-5IA R6I-5IC 

7" 5" 8" — R7I-5IC 

O.D. 

DIAMETER 

LENGTH 

O.D. 

DIAMETER 

O.D. Diameter 

I.D. 

DIAMETER 

LENGTH 

REDUCERS O.D.-O.D. 

O.D. Diameter 

O.D. 

DIAMETER 

Reducers 

Length 

LENGTH 

Aluminized 

Part No. 

I.D. 

DIAMETER 

I.D. 

DIAMETER 

Chrome 

Part No. 

3-1/2" 3" 8" R35O-3OA — 

4" 3" 8" R4O-3OA — 

4" 3-1/2" 8" R4O-35OA — 

5" 4" 8" R5O-4OA — 

6" 4" 8" R6O-4OA — 

6" 5" 8" R6O-5OA — 

7" 5" 8" — R70-5OC 

19

Dia. 

Zinc 

Part No. 

Chrome 

Part No. 

2" RC-200 — 

2-1/4" RC-225 — 

2-1/2" RC-250 — 

2-3/4" RC-275 — 

3" RC-300 RC-300C 

3-1/2" RC-350 RC-350C 

4" RC-400 RC-400C 

4-1/2" RC-450 

5" RC-500 RC-500C 

6" RC-600 RC-600C 

20 

STRAIGHT TUBING 

NOTE: Too Large for UPS, must ship by truck 

Dia. 

Length 

RAIN CAPS 

O.D. / O.D. 

Plain 

Part No. 

Aluminized 

Part No. 

3" 120" S3-120SB S3-120SBA 

3-1/2" 120" S35-120SB S35-120SBA 

4" 120" S4-120SB S4-120SBA 

5" 120" S5-120SB S5-120SBA 

6" 120" S6-120SB S6-120SBA 

7" 120" S7-120SB S7-120SBA 

8" 120" — S8-120SBA 

10" 120" — S10-120SBA 

Dia. 

I.D. / I.D. 

Length 

Aluminized 

Part No. 

3" 120" S3-120EXEXA 

3-1/2" 120" S35-120EXEXA 

4" 120" S4-120EXEXA 

5" 120" S5-120EXEXA 

6" 120" S6-120EXEXA

UNIVERSAL Y PIPES 

Dia. Width Height 

“Type B” 


3" 10-1/2" 16" YB-300A 

3-1/2" 10-1/2" 16" YB-350A 

4" 10-1/2" 16" YB-400A 

5" 10-1/2" 16" YB-500A 

NO DIVIDER PLATE WITH DIVIDER PLATE 

Aluminized 

Part No. 

Aluminized 

Part No. 

“Type A” 

NO DIVIDER PLATE WITH DIVIDER PLATE 

Aluminized 

Part No. 

3" 12" 10" Y-300NPA – – 

3-1/2" 14" 10" Y-350NPA – – 

Chrome 

Part No. 

4" 12" 8" Y-401NPA – – 

4" 26" 12" – Y-400A – 

5" 16" 11" Y-501NPA – – 

5" 25" 14" Y-500NPA Y-500A Y-500C 

“Type C” 


Aluminized 

Part No. 

3" 7-1/8" 10" YC-300A 

3-1/2" 7-11/16" 10" YC-350A 

4" 9-15/32" 12" YC-400A 

5" 10-27/32" 13" YC-500A 

21

TYPE A 

Part No. 

TYPE B 

TURBO & MANIFOLD OUTLETS 

TURBO & MANIFOLD OUTLETS 

Part 

Length 

Tube 

Dia. 

Flange 

Dia. 

Fits 

If a Pyrometer fitting is needed, add "PYRO" to the part number. 

All of these parts are aluminized. 

22 

Part No. 

Part 

Length 

Tube 

Dia. 

Flange 

Dia. 

T362-6ID 6" 3" O.D./3" I.D. 3.62" D.D. 6V71 

T425-6ID 6" 3-1/2" O.D./3-1/2" I.D. 4.25" D.D. 8V71 

T475-6ID 6" 4" O.D./4" I.D. 4.75" D.D. 671/12V71 

Fits 

Use V-Band 

Clamp No. 

T321-2 2" 2-3/4" 3.21" 5.9B cummins VB-321C 

T375-6 6" 3" 3.75" — — 

T400-6 6" 3-1/2" 4.00" Detroit Diesel — 

T407-4 4" 3-1/2" 4.07" 3208T Cat VB-419C 

T425-4 4" 3-1/2" 4.25" 7.3 Ford Powerstroke — 

T450-6 6" 4" 4.5" Cummins — 

T461-4 4" 4" 4.61" 3306 Cat VB-461D 

T461-4 4" 4" 4.61" Most 6 Cyl. Macks VB-461M 

T475-4 4" 4" 4.75" L10 Cummins & 3176 Cat VB-475C 

T475-4 4" 4" 4.75" 8.2T Detroit VB-475D 

T525-4 4" 5" 5.25" 6V & 8V92T Detroit VB-525D 

T550-6 6" 5" 5.5" N14 & ISX Cummins — 

T588-6 6" 5" 5.88" 3406 & C15 Cat VB-588C 

T588-6 6" 5" 5.88" 855 C.I. Cummins W/T50 Turbo VB-588C 

T588-6 6" 5" 5.88" 60 Series Detroit VB-588C 

TURBO REPAIR FLANGES 

A 

B 

C (I.D.) 

Replaces cracked flanges 

Part No. 

A 

Dia. 

B 

Length 

C 

Dia. 

ID 

Application 

TYPE A 

TYPE B 

TUBE DIA. 

O.D. 

FLANGE DIA. 

TRF-4625 4.625” 2” 4” Replaces Cat#9N-6325 

TRF-475 4.75” 2” 4” T35 Turbo, L10 & 3176 

TRF-588 5.88” 2” 5” T50 Turbo, N14, ISX, 3406, C15, 60 Series 

PART 

LENGTH 

22 o

CLAMPS 

ROUND BOLT 

OPEN 

SADDLE 

(Economy) 

Dia. 

ROUND BOLT 

OPEN SADDLE 

Economy Clamp 

(Plain Steel) 

Part No. Fits 

Replaces OEM Part No. 

HD GUILLOTINE 

SINGLE EDGE 

SADDLE 

(Zinc Plated) 

V-BAND CLAMPS 

VB-321C 3903652 5.9 B Cummins 

VB-384F F6TA-5A281-BA 94-97 7.3L Powerstroke 

VB-384G 15671559 00-06 Duramax Engines 

VB-413C 3905216 8.3C Cummins 

VB-419C IW5455 3208TCat 

VB-419F E2HZ5A231A 6.6 & 7.8 Ford 

VB-429F7 4C24-5A281-HA 99-03 7.3L Powerstroke 

VB-429F6 6C34-5A281-AA 03.5-07 6.0L Powerstroke 

VB-450 A49-3535399 03-04 S.O. 5.9L Cummins 

VB-461D IW2431 3306 Cat 

VB-461M 48RU2341 Most 6 Cyl. Macks 

VB-475C 115774 L-10 Cummins & 3176 Cat 

VB-475D 154977 8.2 T Detroit 

VB-525D 513262 6V & 8V92T Detroit 

VB-532 52121285AA 04-07 H.O. 5.9L Cummins 

VB-588C 186917 855 C.I. Cummins W/T50 Turbo 

VB-588C 23506159 All 60 Series Detroit 

VB-588C 186917 3406 Cat W/T50 Turbo 

ROUND BOLT 

CLOSED SINGLE 

SADDLE 

(Good) 

* Not recommended for joining 2 chrome pipes 

HD GUILLOTINE 

SINGLE EDGE 

SADDLE 

(Chrome) 

ROUND BOLT 

CLOSED DOUBLE 

SADDLE 

(Better) 

ROUND BOLT 

HD WELDED 

SADDLE 

(Zinc Plated) 

FLAT BOLT 

HD WELDED 

SADDLE 

(Zinc Plated) 

FLAT BOLT 

CLOSED DOUBLE 

SADDLE 

(Best) 

FLAT BOLT 

HD WELDED 

SADDLE 

(Chrome) 

2" — RB-2ZN — — — — 

2-1/4" — RB-225ZN — — — — 

2-1/2" — RB-25ZN — — — — 

2-3/4" — RB-275ZN — — — — 

3" RO-3 RB3ZN RB-3C HD-3ZN — — 

3-1/2" RO-35 RB-35ZN RB-35C HD-35ZN — — 

4" RO-4 RB-4ZN RB-4C HD-4ZN FB-4ZN FB-4C 

4-1/2" — RB-45ZN — — — — 

5" RO-5 RB-5ZN RB-5C HD-5ZN FB-5ZN FB-5C 

6" — RB-6ZN RB-6C — FB-6ZN FB-6C 

7" — — — — — FB-7C 

23

* Original TORCA product. 

** NOT bright finish 

AccuSeal, TorcTite, and EasySeal are all trademarks of Torca Products. 

24 

Flexible 

Seal Clamps 

ValuSeal 

Clamps* 

EasySeal 

Clamps* 

TorcTite 

Preformed 

Clamps* 

AccuSeal 

Clamps* 

CLAMPS 

3" WIDE 11 3 3" WIDE 

/4" WIDE 

3 /8" WIDE 3" WIDE 

3" WIDE 

Westfalia 

Clamps 

(Good) (Better) (Better) (Better) (Best) (Best) 

Aluminized Stainless Dull Bright Aluminized Stainless Bright Aluminized Bright Aluminized Bright 

Dia. Part # Part # Stainless Stainless Part# Part # Stainless Part# Stainless Part# Stainless 

Part# Part# Part # Part# 

2" — FL-2 — — PF-2A PF-2 — AS-2A — — — 

2-1/4" — FL-225 — — PF-225A PF-225 — — — — — 

2-1/2" — FL-25 — — PF-25A PF-25 — AS-25A — — — 

2-3/4" — FL-275 — — PF-275A PF-275 — — — — — 

3" — FL-3 — EZ-3 PF-3A PF-3 — AS-3A — — WFC-3** 

3-1/2" — FL-35 — EZ-35 PF-35A PF-35 — AS-35A — — — 

4" FL-4A FL-4 VS-4 EZ-4 PF-4A PF-4 — AS-4A AS-4P WFC-4A WFC-4 

4-1/2" — — — — — — — — — — — 

5" FL-5A FL-5 VS-5 EZ-5 PF-5A PF-5 PF-5P AS-5A AS-5P WFC-5A WFC-5 

6" — FL-6 — — — — PF-6P — AS-6P — — 

7" — — — FL-7P — — — — AS-7P — —

FLEXIBLE METAL HOSES 

We are pleased to announce the arrival of the Westfalia Stainless Flex Hoses! 

Superior flexibility and torsional movement make this the finest flex the 

industry has ever seen! 

PRECUT LENGTHS 

Dia. 

Length 

Heavy Duty 

304 Stainless 

3" 12" — 

3" 18" — 

3" 36" SF-336 

3.5" 18" SF-3518 

3.5" 24" SF-3524 

3.5" 36" SF-3536 

4" 12" *SF-412 

4" 18" *SF-418 

4" 24" *SF-424 

4" 36" *SF-436 

4" 48" *SF-448 

5" 12" *SF-512 

5" 18" *SF-518 

5" 24" *SF-524 

5" 36" *SF-536 

5" 48" *SF-548 

Various Pre-Cut Lengths: 

• Deburred Ends 

• Save the Time and Hassle of Cutting 

• Easier to Inventory and Handle 

• Easier to Display 

MADE IN 

THE USA 

NOTE: All Grand Rock Flex is measured in EXTENDED lengths. 

• Compression may occur during handling and transit 

• DO NOT attempt to cut Westfalia precut flex at all 

* Marked stainless flex is a superior quality genuine 

Westfalia product manufactured in the USA for Grand Rock. 

25

26 

MOUNTING BRACKETS 

180° & Aerodynamic Heat Shield Mounting Brackets 

To Fit 

Degree of 

Heat Shield 

To Fit 

Dia. 

Zinc 

Plated 

Part No. 

Chrome 

Plated 

Part No. 

180° 4" - PG-4CBRKT 

180° 5" - PG-5CBRKT 

180° 6" - PG-6CBRKT 

180° 7" - PG-7CBRKT 

180° 

3 Standoffs 

Top View 

STACK & MUFFLER MOUNTING BRACKETS 

PETERBILT 

Bolts directly onto factory cab brackets 

Dia. 

4" MB-4PBS 

5" MB-5PBS 

6" MB-6PBS 

7" MB-7PBS 

KENWORTH 

Polished 

Stainless 

Part No. 

W900 B 

Bolts directly onto factory cab brackets 

Dia. 

Polished 

Stainless 

Part No. 

5" MB-5KWS 

6" MB-6KWS 

7" MB-7KWS 

UNIVERSAL 

Muffler Hanger 

For use in horizontal applications 

Fits 359 & 379 models thru ’93 

Fits 

Muffler 

Dimensions 

Zinc 

Plated 

Part No. 

8" RMH-8 

8.5" RMH-85 

9" RMH-9 

10" RMH-10 

11" RMH-11 

8.5" x 11" OMH-8511 

10" x 15" OMH-1015 

Aerocab 

Dia. 

Polished 

Stainless 

Part No. 

5" ACFM-5 

6" ACFM-6 

7" ACFM-7 

Hanger 

For horizontal applications for use on 

exhaust pipes or mufflers. Use 2 per 

muffler. Clamps not included. See 

page 35 for proper RB style clamps. 

Can replace standard 5" bolt type clamps. 

9.5" 

Plain 

Part No. 

H-10

HEAT SHIELDS 

Degree of 

Wrap 

around 

Degree of 

Wrap 

around 

Top View 

180° 

Length 

�� 

ULTRA BRIGHT 

No Rust, No Dulling or Tarnishing! 

Length 

To Fit 

Dia. 

To Fit 

Dia. 

No 

Hole 

Part # 

Chromed Stainless Steel Part # Ultra Bright Finish 

No 

Hole 

Part # 

180° 48” 4” PG-448NSCP PG-448RSCP PG-448VSCP 

180° 48” 5” PG-548NSCP PG-548RSCP PG-548VSCP 

2 PC. MOUNTING BRACKETS 

ARE INCLUDED WITH SHIELD KIT 

No 

Hole 

Stainless Steel Part # Bright Finish 

Round 

Hole 

Part # 

Round 

Hole 

Part # 

Round 

Hole 

Vertical 

Slot 

Part # 

180° 30" 4" PG-430NS – PG-430VS 

180° 30" 5" PG-530NS – PG-530VS 

180° 30" 6" PG-630NS – PG-630VS 

180° 30" 7" PG-730NS – PG-730VS 

180° 48" 4" PG-448NS PG-448RS PG-448VS 

180° 48" 5" PG-548NS PG-548RS PG-548VS 

Vertical 

Slot 

Part # 

Vertical 

Slot 

27

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