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Flowmaster 817129 American Thunder Crossmember-Back Dual Exhaust System - 2.5 Inch Stainless Steel

(1967-1968 Chevrolet Camaro; 1967-1968 Pontiac Firebird)

Part of: Flowmaster American Thunder Crossmember-Back Dual Exhaust System

Other options in this family: Flowmaster 817654 Flowmaster 17201 Flowmaster 817200 Flowmaster 817174 Flowmaster 17282

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817129
13 reviews
Sale Price

$999.95

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Flowmaster American Thunder Crossmember-Back Exhaust System delivers aggressive exhaust tone and performance in a true dual 2.50-inch configuration. This complete exhaust system features mandrel-bent 16-gauge stainless steel tubing for maximum flow and durability, along with Flowmaster's renowned Super 44 Series mufflers for that signature aggressive to moderate exterior sound.

Key Features:

  • True dual 2.50-inch crossmember-back exhaust system with mandrel-bent stainless steel tubing
  • Super 44 Series performance mufflers for aggressive exhaust tone
  • Built-in H-pipe crossover for improved exhaust scavenging and performance
  • 16-gauge stainless steel construction for long-lasting durability
  • Tailpipes exit in the stock location for OEM appearance
  • Includes all necessary hangers and hardware for straightforward installation

This American Thunder system is engineered to provide performance gains and that distinctive Flowmaster sound while maintaining a professional fit and finish. The mandrel-bent tubing ensures smooth exhaust flow without restrictions, and the included mounting hardware makes installation simple for experienced DIY enthusiasts or professional installers.

Products specifications

Fits

1967-1968 Chevrolet Camaro; 1967-1968 Pontiac Firebird

Outlet Outside Diameter

2.500 in.

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

California Proposition 65 Chemical Name 2

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name 1

Nickel (metallic)

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

System Type

Header Back

Heat Shield Attached

No

Material

Stainless Steel

Exit Position

Dual Side

Tubing Diameter

2.500 in.

Outlet Diameter

2.500 in.

Muffler Count

2

Tail Pipe Diameter

2.500 in.

Exhaust Type

Dual

Single or Dual

Dual

Title

Flowmaster 817129 Header-back System - Dual Side Exit - American Thunder - Aggressive Sound

Brand

Flowmaster

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Drive

2WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Quantity

0

Exhaust Tip Quantity

Sold Separately

Exhaust Tip Shape

Round

Exit Style

Dual Out Rear

Exit Style

Dual Out Side

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Diameter

2.50

Inlet Type

Weld-On

Mounting Bracket Included

Yes

Muffler (Left) Type

Chambered

Muffler (Right) Type

Chambered

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Quantity

1

muffler part number

842546

Muffler Quantity

2

Muffler Series

Super 44 Series

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

Dual

Tail Pipe Quantity

2

Tail Pipe Tapered Outlet

No

Type

Crossmember-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

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