Flowmaster
Select Your Vehicle
This mandrel-bent exhaust system is custom designed for 1959-1964 Chevrolet Impala, Biscayne and Bel Air models and is perfect for the person looking for true dual exhaust system. The exhaust system includes all the necessary tubing to the rear axle and does Not include mufflers. This gives you the freedom to choose the sound level of Flowmaster performance mufflers you desire for your vehicle. System features include all mandrel-bent 2.50-inch stainless steel tubing with hangers welded in pre-designated areas to help ease installation and includes short turnouts that exit in front of the rear wheels. Be sure to check out our optional over the axle tailpipe kit #81055 (sold separately) if you want to run the tailpipes out the back of the car. This system includes easy to follow installation instructions and is covered by our Lifetime Limited Warranty. Notes: Does Not include mufflers or header cone adapters. Requires 2.50-inch Offset Inlet/Same side Offset Outlets such as part # 942549 (Super 44 Series) or 942544 (40 Delta Flow) if using an oval case muffler, or for an old school sound a pair of stainless steel Super HP2 mufflers like part # 12518304 or # 12518409, or the Flow FX muffler # 71415.
- Dual; Dual Side Exit Before Rear Wheel; Includes 2.5 in. Outlet; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use Pipes Only Mufflers Sold Separately Use Offset Inlet/Offset Outlet SameSide
- Header-Back Pipe Kit; Dual; Dual Side Exit Before Rear Wheel; Includes 2.5 in. Outlet; 409 Stainless Steel;
P311-5DBD323 817413 Flowmaster New
| Vehicle | Block | Engine | CID | CC |
|---|---|---|---|---|
| 1961 Chevrolet Biscayne | V | 8 Cyl 4.6L | 283 | 4638 |
-
Features:
- Mandrel Bent 16ga 409 Stainless Tubing
- Limited Lifetime Warranty
- 2.5 in Tubing Only
- No Mufflers In Pipe Kit
- Header Back System
- Dual Out Side Exit
- Requires Offset/Offset Mufflers
- Premium Flowmaster Quality
- Exhaust Series: Pipes Only
- Exhaust Type: Dual
- Exit Position: Dual Side
- Exit Style: Turn Down
- Heat Shield Attached: No
- Inlet Inside Diameter: 2.500 In.
- Outlet Outside Diameter: 2.500 In.
- System Type: Pipe
- Tail Pipe Diameter: 2.500 In.
- Tip Diameter: N/a
- Tip Quantity: 0
- Tubing Diameter: 2.500 In.
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- 1 5/8 in. Primary; 3.0 in. Ball Flange Collector; 14 Gauge Tubing; 3/8 in. Flange; Silver Ceramic Coating; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
- Scavenger Series Elite Long Tube Header; 1 5/8 in. Primary; 3.0 in. Ball Flange Collector; 14 Gauge Tubing; 3/8 in. Flange; Silver Ceramic Coating; 409 Stainless Steel;
P311-1C4ACFC 814110 Flowmaster New
| Vehicle | Block | Engine | CID | CC |
|---|---|---|---|---|
| 1974 Chevrolet Camaro | V | 8 Cyl 5.7L | 350 | - |
-
Features:
- Stainless Steel Construction
- Ball And Socket Collector Connections
- Gasketless Leak Free Ball Flange Connections
- Dyno Tuned for Maximum Performance
- High Temperature Ceramic Coated
- Ceramic Coated For Ultimate Protection
- Improve Performance/Throttle Response
- Engineered For Easy At Home Installation
- 1 Year Warranty
- Premium Flowmaster Quality
- Application: Automotive
- Attachment Method: Ball And Socket Flange
- Automotive Item Grade: High Performance Part
- Bolts Or Studs Included: Yes
- CARB (California) Compliant: No
- Coated Finish: Ceramic Coated Stainless Steel
- Collector Included: Yes
- Engine Make/Size: Chevy Small Block (262-400)
- Flange Thickness: 0.375 In.
- Head Style: 4-1 One-piece
- Header Series: Scavenger Series Elite
- Inlet Port Shape: Round
- Port Shape: Same As Port/can Be Matched
- Primary Tube Diameter: 1.625 In.
- Reducers Included: Yes
- Tube Diameter: 1.625 In.
- Tube Direction: Up Swept
- Tube Gauge: 16
- Tube Length: Unequal Length
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- 1.75 in. Primary; 3.0 in. Ball Flange Collector; 14 Gauge Tubing; 3/8 in. Flange; Silver Ceramic Coating; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
- Scavenger Series Elite Long Tube Header; 1.75 in. Primary; 3.0 in. Ball Flange Collector; 14 Gauge Tubing; 3/8 in. Flange; Silver Ceramic Coating; 409 Stainless Steel;
P311-4E6601D 814111 Flowmaster New
| Vehicle | Block | Engine | CID | CC |
|---|---|---|---|---|
| 1970 Chevrolet Camaro | V | 8 Cyl 6.6L | 402 | 6588 |
-
Features:
- Stainless Steel Construction
- Ball And Socket Collector Connections
- Gasketless Leak Free Ball Flange Connections
- Dyno Tuned for Maximum Performance
- High Temperature Ceramic Coated
- Ceramic Coated For Ultimate Protection
- Improve Performance/Throttle Response
- Engineered For Easy At Home Installation
- 1 Year Warranty
- Premium Flowmaster Quality
- Application: Automotive
- Attachment Method: Ball And Socket Flange
- Automotive Item Grade: High Performance
- Bolts Or Studs Included: Yes
- Coated Finish: Ceramic Coated Stainless Steel
- Collector Included: Yes
- Engine Make/Size: Chevy Big Block (396-502)
- Flange Thickness: 0.375 In.
- Head Style: 4-1 One-piece
- Inlet Port Shape: Round
- Port Shape: Same As Port/can Be Matched
- Primary Tube Diameter: 1.750 In.
- Reducers Included: Yes
- Tube Diameter: 1.750 In.
- Tube Direction: Up Swept
- Tube Gauge: 16
- Tube Length: Unequal Length
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- 2 in. Primary; 3.5 in. Ball Flange Collector; 14 Gauge Tubing; 3/8 in. Flange; Silver Ceramic Coating; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
- Scavenger Series Elite Long Tube Header; 2 in. Primary; 3.5 in. Ball Flange Collector; 14 Gauge Tubing; 3/8 in. Flange; Silver Ceramic Coating; 409 Stainless Steel;
P311-2050812 814114 Flowmaster New
| Vehicle | Block | Engine | CID | CC |
|---|---|---|---|---|
| 1972 Chevrolet Chevelle | V | 8 Cyl 7.4L | 454 | 7439 |
-
Features:
- Stainless Steel Construction
- Ball And Socket Collector Connections
- Gasketless Leak Free Ball Flange Connections
- Dyno Tuned for Maximum Performance
- High Temperature Ceramic Coated
- Deliver Excellent Performance Gains
- Engineered For Easy At Home Installation
- 1 Year Warranty
- Premium Flowmaster Quality
- Application: Automotive
- Attachment Method: Ball And Socket Flange
- Automotive Item Grade: High Performance Part
- Bolts Or Studs Included: Yes
- CARB (California) Compliant: No
- Coated Finish: Ceramic Coated Stainless Steel
- Collector Included: Yes
- Engine Make/Size: Chevy Big Block (396-502)
- Flange Thickness: 0.375 In.
- Head Style: 4-1 One-piece
- Header Series: Scavenger Series Elite
- Inlet Port Shape: Square Case
- Port Shape: Same As Port/can Be Matched
- Primary Tube Diameter: 2.000 In.
- Reducers Included: Yes
- Tube Diameter: 2.000 In.
- Tube Direction: Up Swept
- Tube Gauge: 16
- Tube Length: Unequal Length
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Dual Rear Exit; 2.5 in. Dia.; 409 Stainless Steel; 2 pc. Use Offset Inlet/Center Outlet Mufflers Only
- Tailpipes; Dual Rear Exit; 2.5 in. Dia.; 409 Stainless Steel; 2 pc.;
P311-09C03C7 815801 Flowmaster New
| Vehicle | Submodel | Block | Engine | CID | CC |
|---|---|---|---|---|---|
| 1978 Pontiac Firebird | Trans Am | V | 8 Cyl 6.6L | 400 | - |
-
Features:
- Mandrel Bent 16ga Stainless Tubing
- Limited Lifetime Warranty
- 2.50 in Pre Bent Tailpipes
- Use Offset Inlet/Center Outlet Mufflers Only
- Premium Flowmaster Quality
- Compact Design
- Automotive Item Grade: High Performance
- Exit Position: Dual Rear
- Fitment: Direct Oe Replacement
- Inlet Diameter: 2.500 In.
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Dual Rear Exit; 2.5 in. Dia.; 409 Stainless Steel; 2 piece
- Tailpipes; Dual Rear Exit; 2.5 in. Dia.; 409 Stainless Steel; 2 pc.;
P311-09C03C7 815801 Flowmaster New
| Vehicle | Block | Engine | CID | CC |
|---|---|---|---|---|
| 1972 Chevrolet Nova | V | 8 Cyl 6.6L | 402 | 6588 |
-
Features:
- Mandrel Bent 16ga Stainless Tubing
- Limited Lifetime Warranty
- 2.50 in Pre Bent Tailpipes
- Use Offset Inlet/Center Outlet Mufflers Only
- Premium Flowmaster Quality
- Compact Design
- Automotive Item Grade: High Performance
- Exit Position: Dual Rear
- Fitment: Direct Oe Replacement
- Inlet Diameter: 2.500 In.
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Dual; Dual Rear Exit; Includes 2.5 in. Tubing/Super 44 Series(TM) Mufflers; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
- American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Includes 2.5 in. Tubing/Super 44 Series™ Mufflers; 409 Stainless Steel;
P311-0E0E3E3 817158 Flowmaster New
| Vehicle |
|---|
| 1972 Pontiac Ventura |
-
Features:
- Mandrel Bent 16ga 409 Stainless Tubing
- Limited Lifetime Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Includes Hangers and Hardware For Easy Installation
- Header Back System
- Dual Out Rear Exit
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- Exhaust Series: American Thunder
- Exhaust Type: Dual
- Exit Position: Dual Rear
- Exit Style: Straight
- Heat Shield Attached: No
- Inlet Diameter: 2.500 In.
- Inlet Inside Diameter: 2.500 In.
- Muffler Count: 2
- Muffler Part Number: Kit Only
- Muffler Series: Super 44 Series
- Outlet Outside Diameter: 2.500 In.
- Sound Level: Moderate/aggressive
- System Type: Header Back
- Tail Pipe Diameter: 2.500 In.
- Tip Diameter: N/a
- Tubing Diameter: 2.500 In.
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Dual; Dual Rear Exit; Includes 3.0 in. Tubing From Transmission X-Member Back/H-Pipe/Hardware/Super 40 Series(TM) Mufflers; 409 Stainless Steel;Legal On Non-Emissions Controlled Vehicles Or For Race Use
- American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Includes 3.0 in. Tubing From Transmission X-Member Back/H-Pipe/Hardware/Super 40 Series™ Mufflers; 409 Stainless Steel;
P311-0DA62EE 817200 Flowmaster New
| Vehicle | Block | Engine | CID | CC |
|---|---|---|---|---|
| 1970 Buick Skylark | V | 8 Cyl 7.5L | 455 | - |
-
Features:
- Mandrel Bent 16ga 409 Stainless Tubing
- Limited Lifetime Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Includes Hangers and Hardware For Easy Installation
- Header Back System
- Dual Out Rear Exit
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- Exhaust Series: American Thunder
- Exhaust Type: Dual
- Exit Position: Dual Rear
- Exit Style: Straight
- Heat Shield Attached: No
- Inlet Inside Diameter: N/a
- Muffler Count: 2
- Muffler Part Number: Kit Only
- Muffler Series: Super 40 Series
- Sound Level: Aggressive
- System Type: Header Back
- Tip Diameter: N/a
- Tip Quantity: 0
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Dual; Dual Rear Exit; Includes 2.5 in. Tubing/H-Pipe/Hardware/Super 44 Series(TM) Mufflers/3.0 in. Stainless Steel Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use 409S Stainless Steel~Does Not Fit Convertibles~For Cars w/Valance Cutouts
- American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Includes 2.5 in. Tubing/H-Pipe/Hardware/Super 44 Series™ Mufflers/3.0 in. Stainless Steel Tips;
P311-1C8B0C1 817281 Flowmaster New
| Vehicle | Submodel | Block | Engine | CID | CC |
|---|---|---|---|---|---|
| 1970 Ford Mustang | Base | V | 8 Cyl 7.0L | 429 | 7030 |
-
Features:
- Mandrel Bent 16 Gauge 409 Stainless Tubing
- Limited Lifetime Warranty
- Aggressive And Powerful Exterior Exhaust Tone
- Includes Hangers and Hardware For Easy Installation
- Header Back System
- Dual Out Rear Exit
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- Exhaust Series: American Thunder
- Exhaust Type: Dual
- Exit Position: Dual Rear
- Exit Style: Straight
- Heat Shield Attached: No
- Inlet Diameter: 2.500 In.
- Inlet Inside Diameter: 2.500 In.
- Muffler Count: 2
- Muffler Part Number: Kit Only
- Muffler Series: Super 44 Series
- Outlet Outside Diameter: 2.500 In.
- Sound Level: Aggressive
- System Type: Header Back
- Tail Pipe Diameter: 2.500 In.
- Tip Quantity: 2
- Tubing Diameter: 2.500 In.
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Single; Dual Rear Same Side Exit Includes 2.5 in. Outlets/40 Series(TM) Muffler/Tube Extensions/3.0 in. Logo Embossed Stainless Tips;50 State Legal / California Emissions Compliant With Single Flanged Catalytic Converter
- American Thunder Cat Back Exhaust System; Single; Dual Rear Same Side Exit Includes 2.5 in. Outlets/40 Series™ Muffler/Tube Extensions/3.0 in. Logo Embossed Stainless Tips;
P311-0EAE050 817428 Flowmaster New
| Vehicle | Submodel | Body | Bed Length | Block | Engine | CID | CC |
|---|---|---|---|---|---|---|---|
| 2002 Chevrolet Silverado 1500 | Base | Extended Cab Pickup | 78.0 | V | 8 Cyl 4.8L | 294 | - |
-
Features:
- Mandrel Bent 16 Gauge 409 Stainless Tubing
- Includes Hangers And Hardware For Easy Installation
- Dyno Tuned for Maximum Performance
- Premium Flowmaster Quality
- 3 Year Limited Warranty
- Made in the USA
- Exhaust Series: American Thunder
- Exhaust Type: Single
- Exit Position: Dual Rear Same Side
- Exit Style: Straight
- Heat Shield Attached: No
- Inlet Inside Diameter: 2.500 In.
- Muffler Count: 1
- Muffler Part Number: Kit Only
- Muffler Series: Super 40 Series
- Outlet Outside Diameter: 2.500 In.
- Sound Level: Moderate
- System Type: Cat Back
- Tail Pipe Diameter: 2.500 In.
- Tip Quantity: 2
- Tubing Diameter: 2.500 In.
- WARNING CA Proposition 65
- Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
