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Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571

  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
  • Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit, 817571
SKU:
1-159-817571
Category:
Brand:
Flowmaster
Package Weight:
70 lbs
Package Dimensions:
59 × 16 × 15 in
UPC:

700042027002

MPN:

817571

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Description

For the person looking for a complete Header-back dual exhaust system with an aggressive tone. With easy fit in mind, Flowmaster’s American Thunder system for GM F-Body cars include specially-selected 50 series slim-line mufflers to make your Camaro or Firebird come alive. This Header-back dual exhaust system uses 2.50 in. 409S stainless steel tubing (backed by our lifetime limited warranty!) and a durable H-pipe design that delivers improved throttle response, power and mileage. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Note 1- Off Road racing use only – not legal for use on catalyst equipped vehicles. Note 2- requires double hump crosspipe. Note 3- requires fabrication and/or welding to adapt system to manifolds or headers.

Specifications for Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit
2WD/4WD 2WD
Bullet Point #1 Stainless Steel Construction
Bullet Point #2 Dyno tuned for maximum performance
Bullet Point #3 Patented Delta Flow technology
Bullet Point #4 Lifetime limited warranty
Exhaust Series American Thunder
Exit Position Dual Side Exit
Heat Shield No
Inlet Diameter (in) 2.5
Material Stainless Steel
Muffler Quantity 2
Muffler Series 50 Series Slim Line
Outlet Diameter (in) 2.5
Sound Level Moderate/Aggressive Sound
Tubing Diameter (in) 2.5
System Type Header-back System
Exhaust Type Dual
Exit Position Dual Side
Exit Style Straight
Material 409 Stainless Steel
Muffler Count 2
Outlet Size (in.) 2.5
System Type Header Back
Tip Size 2.5 in.
Muffler Type Chambered
Outlet Outside Diameter (in.) 2.5
Vehicle Fitement for Flowmaster 75-81 Gm Fbody 2.5 American Thunder Header-Back System 409S – Dual Side Exit:
+ Chevrolet Camaro

  • 1975 Chevrolet Camaro Base
  • 1976 Chevrolet Camaro Base
  • 1977 Chevrolet Camaro Base
  • 1978 Chevrolet Camaro Base
  • 1979 Chevrolet Camaro Base
  • 1980 Chevrolet Camaro Base
  • 1979 Chevrolet Camaro Berlinetta
  • 1980 Chevrolet Camaro Berlinetta
  • 1981 Chevrolet Camaro Berlinetta
  • 1975 Chevrolet Camaro LT
  • 1976 Chevrolet Camaro LT
  • 1977 Chevrolet Camaro LT
  • 1978 Chevrolet Camaro LT
  • 1976 Chevrolet Camaro LT Rally Sport
  • 1977 Chevrolet Camaro LT Rally Sport
  • 1978 Chevrolet Camaro LT Rally Sport
  • 1976 Chevrolet Camaro Rally Sport
  • 1977 Chevrolet Camaro Rally Sport
  • 1978 Chevrolet Camaro Rally Sport
  • 1979 Chevrolet Camaro Rally Sport
  • 1980 Chevrolet Camaro Rally Sport
  • 1975 Chevrolet Camaro RS
  • 1981 Chevrolet Camaro Sport
  • 1977 Chevrolet Camaro Z28
  • 1978 Chevrolet Camaro Z28
  • 1979 Chevrolet Camaro Z28
  • 1980 Chevrolet Camaro Z28
  • 1981 Chevrolet Camaro Z28
+ Pontiac Firebird

  • 1975 Pontiac Firebird Base
  • 1976 Pontiac Firebird Base
  • 1977 Pontiac Firebird Base
  • 1978 Pontiac Firebird Base
  • 1979 Pontiac Firebird Base
  • 1980 Pontiac Firebird Base
  • 1981 Pontiac Firebird Base
  • 1975 Pontiac Firebird Esprit
  • 1976 Pontiac Firebird Esprit
  • 1977 Pontiac Firebird Esprit
  • 1978 Pontiac Firebird Esprit
  • 1979 Pontiac Firebird Esprit
  • 1980 Pontiac Firebird Esprit
  • 1981 Pontiac Firebird Esprit
  • 1975 Pontiac Firebird Formula
  • 1976 Pontiac Firebird Formula
  • 1977 Pontiac Firebird Formula
  • 1978 Pontiac Firebird Formula
  • 1979 Pontiac Firebird Formula
  • 1980 Pontiac Firebird Formula
  • 1981 Pontiac Firebird Formula
  • 1975 Pontiac Firebird Trans Am
  • 1976 Pontiac Firebird Trans Am
  • 1977 Pontiac Firebird Trans Am
  • 1978 Pontiac Firebird Trans Am
  • 1979 Pontiac Firebird Trans Am
  • 1980 Pontiac Firebird Trans Am
  • 1981 Pontiac Firebird Trans Am
Product Documents

Installation Instructions Document

Warranty Document

Certificate of Origin Document

Additional information

Package Weight
70 lbs
Package Dimensions
59 × 16 × 15 in
UPC

700042027002

MPN

817571

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