For the person who is looking for a complete crossmember-back dual exhaust system with a performance sound. This system is mandrel bent for maximum performance and includes specially selected mufflers. American Thunder 2.5 in. systems generally deliver a moderate to 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 modification. 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.
Specifications:
Description_ASC |
Fits 1967-1974 Mopar A-Body, such as Dodge Dart, Demon, Plymouth Barracuda, Duster, Valiant with V8 engine. Including convertibles. |
Description_EXT |
1967-1974 Mopar A-Body cars with V8 engine. (See applications below) - Aggressive to moderate sound |
Description_DES |
Flowmaster American Thunder Crossmember-Back Exhaust System |
Description_INV |
67-74 MOPAR A-BODY 2.50" AMT 409S |
Description_FAB |
Premium Quality |
Description_FAB |
Improved Horsepower, Torque and Engine Efficiency |
Description_FAB |
Delta Flow Technology |
Description_FAB |
Super 40 Sound Level |
Description_MKT |
For the person who is looking for a complete crossmember-back dual exhaust system with a performance sound. This system is mandrel bent for maximum performance and includes specially selected mufflers. American Thunder 2.5 in. systems generally deliver a moderate to 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 modification. 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. |
Exhaust Series |
American Thunder |
Outlet Diameter |
2.500 in. |
Material |
409 Stainless Steel |
WARNING CA Proposition 65 |
Yes |
Inlet Diameter |
2.500 in. |
California Proposition 65 Chemical Name |
Chromium (hexavalent compounds), Nickel (Metallic) |
Title |
Flowmaster 817585 Header-back System 409S - Dual Rear Exit - American Thunder -Moderate/Aggressive |
Inlet Diameter (in) |
2.5 |
Single Dual |
Dual |
Exit Style |
Straight |
WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
Heat Shield Attached |
No |
California Proposition 65 Required |
Yes |
Product Type |
Exhaust System |
Sound Level |
Aggressive / Moderate |
Warning |
California Proposition 65 |
Single or Dual |
Dual |
Tubing Diameter |
2.500 in. |
Muffler Count |
2 |
Inlet Inside Diameter |
2.500 in. |
California Proposition 65 Chemical Name 2 |
Chromium (hexavalent compounds) |
Muffler Series |
Super 40 Series |
Exhaust Type |
Dual |
Tip Diameter |
N/A |
Tail Pipe Diameter |
2.500 in. |
Outlet Outside Diameter |
2.500 in. |
Muffler Part Number |
Kit Only |
California Proposition 65 Chemical Name 1 |
Nickel (metallic) |
2WD/4WD |
2WD |
Automotive Item Grade |
High Performance Part |
Brand |
Flowmaster |
Emission Code |
5 |
Exit Position |
Dual Out Rear |
Heat Shield |
No |
Muffler Quantity |
2 |
Outlet Diameter (in) |
2.5 |
System Type |
Crossmember-back |
Tip Quantity |
Not Included |
Tubing Diameter (in) |
2.5 |
Length |
15.0000 |
Width |
20.0000 |
Height |
63.0000 |
Weight |
68.0000 |