The American Thunder® crossmember-back exhaust system is a true dual large 3.00-inch muscle car system for the person who is looking for a deep aggressive sound for their high horsepower vehicle. This stainless steel system is mandrel-bent for maximum performance, includes an H-pipe crossover to balance out the exhaust pressures, add hp and torque, and to help eliminate back-rap on deceleration. The specially selected Super 40® Series performance mufflers feature a large case to handle the added horsepower and provide a deep muscular tone flowing through the large 3.00-inch tailpipes. The American Thunder systems generally deliver an aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The sound level will depend greatly on the engine and level of modifications. 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. Covered by our Lifetime Limited Warranty.
Specifications:
| Description_ASC |
Does Not Include Header Reducers or Downpipes for Factory Manifolds |
| Description_DEF |
Exhaust System Kit |
| Description_EXT |
American Thunder Header Back Exhaust System; Dual; Dual Side Exit; Incl. 3.0 in. Tubing/Super 40 Series (TM) Mufflers/Welded H-Pipe/Turndown Tailpipes; 409 Stainless Steel; |
| Description_DES |
Flowmaster American Thunder Crossmember-Back Exhaust System |
| Description_MKT |
The American Thunder® crossmember-back exhaust system is a true dual large 3.00-inch muscle car system for the person who is looking for a deep aggressive sound for their high horsepower vehicle. This stainless steel system is mandrel-bent for maximum performance, includes an H-pipe crossover to balance out the exhaust pressures, add hp and torque, and to help eliminate back-rap on deceleration. The specially selected Super 40® Series performance mufflers feature a large case to handle the added horsepower and provide a deep muscular tone flowing through the large 3.00-inch tailpipes. The American Thunder systems generally deliver an aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The sound level will depend greatly on the engine and level of modifications. 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. Covered by our Lifetime Limited Warranty. |
| Description_INV |
64-67 GM A-BODY 3" AMT DOS 409S |
| Description_FAB |
Large 3.00-inch Exhaust System for High Horsepower Engines |
| Description_FAB |
H-pipe Crossover for Maximum Power and Deep Tone |
| Description_FAB |
Super 40 Series Mufflers for Deep Powerful Sound |
| Description_FAB |
Includes Hangers and Hardware for Installation |
| Description_FAB |
Mandrel-bent 16-gauge Stainless Steel Tubing |
| Description_FAB |
Crossmember-back True Dual Exhaust System |
| Description_FAB |
Aggressive Exterior Exhaust Tone |
| Description_FAB |
Lifetime Limited Warranty |
| Description_SHO |
Exhaust System Kit |
| WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Brand |
Flowmaster |
| Muffler Quantity |
2 |
| Tip Diameter |
3.000 in. |
| Outlet Diameter (in) |
3 |
| System Type |
Crossmember-back |
| Tip Quantity |
2 |
| WARNING CA Proposition 65 |
Yes |
| Tail Pipe Diameter |
3.000 in. |
| Exit Style |
Straight |
| Product Type |
Exhaust System |
| Tip Diameter (in) |
3 |
| Tubing Diameter (in) |
3 |
| Type of Exhaust |
Crossmember-back |
| Warning |
California Proposition 65 |
| Outlet Diameter |
3.000 in. |
| California Proposition 65 Chemical Name 2 |
Chromium (hexavalent compounds) |
| Heat Shield Attached |
No |
| Exhaust Series |
American Thunder |
| Outlet Outside Diameter |
3.000 in. |
| Inlet Diameter |
3.000 in. |
| Muffler Count |
2 |
| Exit Position |
Dual Side Exit |
| Tube Diameter |
3 inch |
| Muffler Series |
Super 40 Series |
| Sound Level |
Aggressive |
| California Proposition 65 Chemical Name 1 |
Nickel (metallic) |
| Title |
Flowmaster 817202 Header-back System 409S - Dual Side Exit - American Thunder - Aggressive Sound |
| Exhaust Type |
Dual |
| Inlet Inside Diameter |
3.000 in. |
| Tubing Diameter |
3.000 in. |
| 2WD/4WD |
2WD |
| California Proposition 65 Chemical Name |
Chromium (hexavalent compounds), Nickel (Metallic) |
| California Proposition 65 Required |
Yes |
| Emission Code |
5 |
| Heat Shield |
No |
| Inlet Diameter (in) |
3 |
| Material |
409 Stainless Steel |
| Length |
12.0000 |
| Width |
28.0000 |
| Height |
48.0000 |
| Weight |
75.0000 |
