For the person who is looking for a true dual crossmember-back exhaust system with an moderate to aggressive exhaust tone. With an easy fit in mind, these systems are constructed from 16-gauge 2.50-inch mandrel-bent stainless steel tubing with a built-in H-pipe crossover, a pair of specially selected Super 44 Series performance mufflers and includes all hangers and hardware necessary for installation. The tailpipes exit in the factory location behind the rear wheels. The exhaust system delivers an aggressive to moderate exterior sound tone with a moderate interior tone and is best suited for the enthusiast who wants their performance to be heard. Like all Flowmaster exhaust systems, the benefits include improved throttle response, power and mileage. Covered by our Lifetime Limited Warranty.
Specifications:
Description_ASC |
Fits 1968-1974 Chevrolet Nova with V8 engine. |
Description_DEF |
Exhaust System Kit |
Description_DES |
Flowmaster American Thunder Crossmember-Back Exhaust System |
Description_MKT |
For the person who is looking for a true dual crossmember-back exhaust system with an moderate to aggressive exhaust tone. With an easy fit in mind, these systems are constructed from 16-gauge 2.50-inch mandrel-bent stainless steel tubing with a built-in H-pipe crossover, a pair of specially selected Super 44 Series performance mufflers and includes all hangers and hardware necessary for installation. The tailpipes exit in the factory location behind the rear wheels. The exhaust system delivers an aggressive to moderate exterior sound tone with a moderate interior tone and is best suited for the enthusiast who wants their performance to be heard. Like all Flowmaster exhaust systems, the benefits include improved throttle response, power and mileage. Covered by our Lifetime Limited Warranty. |
Description_INV |
68-74 CHEVY NOVA 2.5" AMT 409S |
Description_FAB |
Super 44 Series Performance Mufflers for Deep Powerful Sound |
Description_FAB |
Crossmember-back True Dual 2.50-inch Exhaust System |
Description_FAB |
Includes Hangers and Hardware for Installation |
Description_FAB |
Mandrel-bent 16-gauge Stainless Steel Tubing |
Description_FAB |
Aggressive to Moderate Exterior Exhaust Tone |
Description_FAB |
Does Not Include Header Reducer Cones or Downpipes for Factory Manifolds |
Description_FAB |
H-pipe Crossover for Maximum Power |
Description_FAB |
Lifetime Limited Warranty |
Description_EXT |
American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing/Super 44 Series (TM) Mufflers; 409 Stainless Steel; |
Description_SHO |
Exhaust System Kit |
Muffler Part Number |
Kit Only |
Exit Position |
Dual Out Rear |
Heat Shield Attached |
No |
Inlet Inside Diameter |
2.500 in. |
Emission Code |
5 |
Muffler Series |
Super 44 Series |
California Proposition 65 Chemical Name 1 |
Nickel (metallic) |
Exhaust Type |
Dual |
Muffler Count |
2 |
Outlet Diameter |
2.500 in. |
Tubing Diameter |
2.500 in. |
Inlet Diameter |
2.500 in. |
Single or Dual |
Single |
2WD/4WD |
2WD |
Heat Shield |
No |
Inlet Diameter (in) |
2.5 |
Sound Level |
Aggressive / Moderate |
Tube Diameter |
2.5 inch |
Warning |
California Proposition 65 |
Tip Diameter |
N/A |
WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
Exit Style |
Straight |
WARNING CA Proposition 65 |
Yes |
Outlet Outside Diameter |
2.500 in. |
Exhaust Series |
American Thunder |
Tail Pipe Diameter |
2.500 in. |
Title |
Flowmaster 817158 Header-back System 409S -Dual Rear Exit - American Thunder - Moderate/Aggressive |
California Proposition 65 Chemical Name 2 |
Chromium (hexavalent compounds) |
Brand |
Flowmaster |
California Proposition 65 Chemical Name |
Chromium (hexavalent compounds), Nickel (Metallic) |
California Proposition 65 Required |
Yes |
Material |
409 Stainless Steel |
Muffler Quantity |
2 |
Outlet Diameter (in) |
2.5 |
Product Type |
Exhaust System |
Single Dual |
Single |
System Type |
Crossmember-back |
Tubing Diameter (in) |
2.5 |
Type of Exhaust |
Crossmember-back |
Length |
15.4000 |
Width |
16.8000 |
Height |
52.5000 |
Weight |
54.9000 |