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- Dual; Dual Rear Exit; Includes 2.5 in. Tubing From Transmission X-Member Back/H-Pipe/Hardware; Requires Offset/Offset Mufflers;Legal On Non-Emissions Controlled Vehicles Or For Race Use Muffler Must Be Purchased Separately~Use Offset Inlet/Offset Outlet Mufflers Only
- Header-Back Pipe Kit; Dual; Dual Rear Exit; Includes 2.5 in. Tubing From Transmission X-Member Back/H-Pipe/Hardware; Requires Offset/Offset Mufflers;
- Header-Back Pipe Kit
- Product Attributes:
- Tip Quantity: 0
- Tubing Diameter: 2.500 In.
- Exhaust Type: Dual
- WARNING CA Proposition 65: No
- Exhaust Series: Pipes Only
- Heat Shield Attached: No
- Exit Style: Straight
- Inlet Inside Diameter: 2.500 In.
- Outlet Outside Diameter: 2.500 In.
- Tail Pipe Diameter: 2.500 In.
- Exit Position: Dual Rear
- Tip Diameter: N/a
- Single or Dual: Dual
- System Type: Pipe
- Muffler Part Number: Not Included
-
Features:
- 2.5 in. Tubing Only
- No Mufflers In Pipe Kit
- Transmission Cross-Member Back
- Dual Out Rear Exit
- Premium Flowmaster Quality
- 3 Year Limited Warranty
- This mandrel-bent crossmember-back exhaust system is custom designed for most 1964-1972 GM A-body cars and is perfect for the person looking for true dual exhaust system. This system comes complete minus the mufflers and allows you to choose the sound level of the Flowmaster performance mufflers you desire for your vehicle. System features include all mandrel-bent 2.50-inch aluminized steel tubing, an H-pipe to equalize the exhaust gas pressures and sound for maximum performance and maximum clearance and includes two styles of tailpipe exits. Designed for an easy fit, these systems include all necessary parts, hardware, and instructions for an easy installation. Covered by our 3-year Limited Warranty. Notes: Requires 2.50-inch Offset Inlet/Opposite side Offset Outlet such as part# 942548 (Super 44 Series) or 52558 (50 Series) mufflers.
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Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 1966 - Chevrolet Chevelle | L | 3180 | 6 Cyl 3.2L | Base | 194 |
- Dual; Dual Rear Exit; Includes 2.5 in. Tubing/X-Member Back/H-Pipe/Hardware/Super 40 Series(TM) Mufflers;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/X-Member Back/H-Pipe/Hardware/Super 40 Series™ Mufflers;
- American Thunder Header Back Exhaust System
- Product Attributes:
- Tip Quantity: 0
- Tubing Diameter: 2.500 In.
- Exhaust Type: Dual
- Inlet Diameter: 2.500 In.
- Sound Level: Moderate/aggressive
- WARNING CA Proposition 65: No
- Exhaust Series: American Thunder
- Heat Shield Attached: No
- Exit Style: Straight
- Muffler Series: Super 40 Series
- Inlet Inside Diameter: N/a
- Outlet Outside Diameter: 2.500 In.
- Tail Pipe Diameter: 2.500 In.
- Exit Position: Dual Rear
- Tip Diameter: N/a
- Muffler Count: 2
- Single or Dual: Dual
- System Type: Header Back
- Muffler Part Number: 952548
- Outlet Diameter: 2.500 In.
-
Features:
- Mandrel Bent 16 Gauge Aluminized Tubing
- Moderate to Aggressive Exterior Exhaust Tone
- Includes Hangers And Hardware For Easy Installation
- Connects After Factory Catalytic Converter
- Premium Flowmaster Quality
- Made in the USA
- 3 Year Limited Warranty
- This American Thunder crossmember-back exhaust system is custom designed for most 1964-1972 GM A-body cars and is for the person looking for a complete 2.50-inch dual exhaust system with a moderately aggressive exterior tone and a moderate interior sound. With easy fit in mind, these aluminized steel systems feature all mandrel-bent tubing, an H-pipe to equalize the exhaust pressures for maximum performance and deep sound and includes a pair of specially selected Super 40 mufflers. The mandrel-bent 2.50-inch tailpipes tuck up out of the way for maximum clearance and offer you two choices of tailpipe exit styles. Like all Flowmaster systems, benefits include improved throttle response, power, and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for an easy installation and is covered by our 3-year Limited Warranty.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | Sub Model | CID |
|---|---|---|---|---|---|
| 1966 - Chevrolet Chevelle | L | 3180 | 6 Cyl 3.2L | Base | 194 |
- Single Side Exit; 2.5 in. Diameter Sold In Pairs; Hardware/Hangers Are Required For Installation; Offset Inlet/Offset Outlet Mufflers Required Use Offset Inlet/Offset Outlet Mufflers Only
- Tailpipe Set; Single Side Exit; 2.5 in. Diameter Sold In Pairs; Hardware/Hangers Are Required For Installation; Offset Inlet/Offset Outlet Mufflers Required;
- Tailpipe Set
- Product Attributes:
- Tubing Diameter: 2.500 In.
- Automotive Item Grade: High Performance
- Exhaust Pipe Wall Max Gauge: 16
- Exit Position: Single Side
- Inlet Diameter: 2.500 In.
- System Type: Tailpipe
- WARNING CA Proposition 65: No
- Fitment: Direct Oe Replacement
- Outlet Diameter: 2.500 In.
-
Features:
- Mandrel Bent 16 Gauge Aluminized Tubing
- Exits At Rear Of Vehicle
- Aluminized Steel
- Premium Flowmaster Quality
- 3 Year Limited Warranty
- These Builder Series tailpipes are constructed from 2.50-inch mandrel-bent 16-gauge aluminized steel tubing for maximum flow, tuck up high in the chassis for good clearance and exit straight-out the back under the rear bumper. Designed to be used with Side Inlet/Opposite Side Outlet mufflers such as part# 942548 (Super 44 Series) or 53058 (Super 50 Series) mufflers. Covered by our 3-year Limited Warranty. Note: Not designed to fit in factory bumper cutouts. Some fitment may be necessary. Does Not include installation hardware or exhaust tips.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Chevrolet Chevelle | V | 6489 | 8 Cyl 6.5L | 396 |
- 3.0 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
- 50 Series™ Delta Flow Muffler; 3.0 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel;
- 50 Series™ Delta Flow Muffler
- Product Attributes:
- Tip Quantity: 0
- Automotive Item Grade: High Performance
- Mount Type: Uses New Hangers (not Included)
- Muffler Type: Reflection
- Outlet Connection Type: Pipe
- Outlet Position: Center
- Sound Level: Moderate
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Muffler Series: 50 Series Delta Flow
- Overall Length: 23.000 In.
- Shape: Oval
- Inlet Type: Single Offset
- Inlet Position: Offset
- Body Length: 17.000 In.
- Inlet Connection Type: Pipe
- Outlet Type: Single Center Outlet
-
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Mild to Moderate Exterior Exhaust Tone
- Minimal Interior Resonance
- Excellent Choice For Street Rods Cars and Trucks
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
- The three chamber design utilizes Flowmasters Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Plymouth Belvedere II | V | - | 8 Cyl 4.5L | 273 |
- Super 44™ Delta Flow Muffler
- 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel Not Direct Fit-Some Adaptation Required
- Super 44™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; 409 Stainless Steel;
- Super 44(TM) Delta Flow Muffler
- Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: Yes
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- California Proposition 65 Chemical Name 2: Chromium (hexavalent Compounds)
- Outlet Connection Type: Pipe
- California Proposition 65 Chemical Name 1: Nickel (metallic)
- WARNING CA Proposition 65 Message: Warning: Cancer And Reproductive Harm - Www.p65warnings.ca.gov
- Muffler Series: Super 44 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
-
Features:
- Durable Fully Welded 16ga Stainless Steel
- Limited Lifetime Warranty
- Deep Aggressive Exhaust Note
- Noticeable Interior Resonance
- Recent Two Chamber Improvement
- Race Proven Patented Delta Flow® Technology
- No Internal Packing To Blowout
- Premium Flowmaster Quality
- Flowmasters Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler weve ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
This Part Fits the Following OEM/Substitute Numbers:
11225, 11365, 12225, 13215, 13235, 14225, 14325, 14362
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Dodge Charger | V | 6981 | 8 Cyl 7.0L | 426 |
- 40 Series™ Delta Flow Muffler
- 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
- 40 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
- 40 Series(TM) Delta Flow Muffler
- Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: 40 Series Delta Flow
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: 2.250 In.
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
-
Features:
- Durable Fully Welded 16ga Aluminized Steel
- Race Proven Patented Delta Flow® Technology
- Excellent Street/Strip And Off Road Application
- No Internal Packing To Blowout
- This two chamber design incorporates Flowmasters Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Plymouth Satellite | V | 4473 | 8 Cyl 4.5L | 273 |
- 40 Series™ Muffler
- 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
- 40 Series™ Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
- 40 Series(TM) Muffler
- Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: 40 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
-
Features:
- Durable Fully Welded 16ga Aluminized Steel
- Aggressive Exterior Exhaust Tone
- Noticeable Interior Resonance
- Excellent Street/Strip And Off Road Application
- The Original 40 series muffler delivers an aggressive exterior and interior tone. If youre looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Dodge Charger | V | 5917 | 8 Cyl 5.9L | 361 |
- 50 Series™ Delta Flow Muffler
- 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
- 50 Series™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 17 in.; 23 in. Overall Length; Aluminized Steel;
- 50 Series(TM) Delta Flow Muffler
- Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Moderate
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 17.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: 50 Series Delta Flow
- Overall Length: 23.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: 2.250 In.
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
-
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Mild to Moderate Exterior Exhaust Tone
- Minimal Interior Resonance
- Excellent Choice For Street Rods Cars and Trucks
- Improved HP/TQ and Potential Mileage Improvement
- Race Proven Patented Delta Flow® Technology
- Premium Flowmaster Quality
- The three chamber design utilizes Flowmasters Delta Flow technology along with an internal tuning chamber to reduce sound inside the vehicle. Provides the same performance and exterior tone characteristics as the two chamber, but with less interior resonance. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Plymouth Belvedere | V | 4473 | 8 Cyl 4.5L | 273 |
- Dual Rear Exit; 3.0 in. Diameter Sold In Pairs; Hardware/Hangers Are Required For Installation; Offset Inlet/Offset Outlet Mufflers Required
- Tailpipe Set; Dual Rear Exit; 3.0 in. Diameter Sold In Pairs; Hardware/Hangers Are Required For Installation; Offset Inlet/Offset Outlet Mufflers Required;
- Tailpipe Set
- Product Attributes:
- Automotive Item Grade: High Performance
- Exit Position: Dual Rear
- System Type: Tailpipe
- WARNING CA Proposition 65: No
- Fitment: Direct Oe Replacement
- Overall Length: 35.000 In.
-
Features:
- Mandrel Bent 16 Gauge Aluminized Tubing
- Exits At Rear Of Vehicle
- Aluminized Steel
- Premium Flowmaster Quality
- 3 Year Limited Warranty
- These Builder Series tailpipes are constructed from 3.00-inch mandrel-bent 16-gauge aluminized steel tubing for maximum flow, tuck up high in the chassis for good clearance and exit behind the rear tire, similar to the stock tailpipes. Designed to be used with Side Inlet/Opposite Side Outlet mufflers such as part# 943048 (Super 44 Series) or 53058 (Super 50 Series) mufflers. Covered by our 3-year Limited Warranty. Note: Not designed to fit in factory bumper exhaust cutouts. Some fitment may be necessary. Does Not include installation hardware or exhaust tips.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Oldsmobile Cutlass | V | 5409 | 8 Cyl 5.4L | 330 |
- Super 44™ Delta Flow Muffler
- 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel Not Direct Fit-Some Adaptation Required
- Super 44™ Delta Flow Muffler; 2.25 in. Offset Inlet/Center Outlet; Case Dimensions 4 in. x 9.75 in. x 13 in.; 19 in. Overall Length; Aluminized Steel;
- Super 44(TM) Delta Flow Muffler
- Product Attributes:
- Tip Quantity: 0
- Muffler Type: Reflection
- Outlet Position: Center
- Inlet Diameter: 2.250 In.
- Sound Level: Aggressive
- WARNING CA Proposition 65: No
- Fitment: Universal
- Body Width: 9.750 In.
- Inlet Type: Single Offset
- Body Length: 13.000 In.
- Inlet Outside Diameter: 2.250 In.
- Inlet Connection Type: Pipe
- Outlet Diameter: 2.500 In.
- Mount Type: Uses New Hangers (not Included)
- Automotive Item Grade: High Performance
- Outlet Connection Type: Pipe
- Muffler Series: Super 44 Series
- Overall Length: 19.000 In.
- Inlet Inside Diameter: 2.250 In.
- Outlet Outside Diameter: 2.250 In.
- Main Piping Diameter: Oem
- Shape: Oval
- Inlet Position: Offset
- Outlet Type: Single Center Outlet
-
Features:
- Durable Fully Welded 16ga Aluminized Steel
- 3 Year Limited Warranty
- Deep Aggressive Exhaust Note
- Noticeable Interior Resonance
- Recent Two Chamber Improvement
- Race Proven Patented Delta Flow® Technology
- No Internal Packing To Blowout
- Premium Flowmaster Quality
- Flowmasters Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four-inch case street muffler weve ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
-
Suggested Purchase Quantity: 2
- Most jobs typically require 2 of this item.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1966 - Plymouth Satellite | V | 7211 | 8 Cyl 7.2L | 440 |
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