For the person who is looking for a complete crossmember-back dual exhaust system for your 1955-1957 Chevy coupes and sedans. This American Thunder® system is manufactured from 2.50-inch mandrel-bent stainless steel for maximum performance and longevity, and includes a built-in H-pipe for a mellow smooth tone eliminating back rap on deceleration. The system includes a pair of Super 40® Series performance mufflers for a deep exterior sound, with a moderate interior tone and dual tailpipes tucked up high for clearance and exit straight out the back under the rear bumper. 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. Notes: Does Not fit wagons or convertibles.
Specifications:
Description_ASC |
Fits 1955-1957 Chevrolet cars with V8 engine. Does Not fit convertibles or wagons. |
Description_DEF |
Exhaust System Kit |
Description_DES |
Flowmaster American Thunder Crossmember-Back Exhaust System |
Description_EXT |
American Thunder Header Back Exhaust System; Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Super 40 Series (TM) Mufflers/3.0 in. Stainless Tips; |
Description_SHO |
Exhaust System Kit |
Description_FAB |
H-pipe Crossover for Maximum Power and Deep Tone |
Description_FAB |
Super 44 Series Mufflers for Deep Powerful Sound |
Description_FAB |
Mandrel-bent 16-gauge Stainless Steel Tubing |
Description_FAB |
Includes Hangers and Hardware for Installation |
Description_FAB |
Moderate to Aggressive Exterior Exhaust Tone |
Description_FAB |
Crossmember-back True Dual Exhaust System |
Description_FAB |
Does Not Include Header Reducers or Downpipes for Factory Manifolds |
Description_FAB |
Lifetime Limited Warranty |
Description_MKT |
For the person who is looking for a complete crossmember-back dual exhaust system for your 1955-1957 Chevy coupes and sedans. This American Thunder® system is manufactured from 2.50-inch mandrel-bent stainless steel for maximum performance and longevity, and includes a built-in H-pipe for a mellow smooth tone eliminating back rap on deceleration. The system includes a pair of Super 40® Series performance mufflers for a deep exterior sound, with a moderate interior tone and dual tailpipes tucked up high for clearance and exit straight out the back under the rear bumper. 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. Notes: Does Not fit wagons or convertibles. |
Description_INV |
55-57 CHEVY 2.5" AMT 409S |
California Proposition 65 Chemical Name 1 |
Nickel (metallic) |
Inlet Inside Diameter |
2.500 in. |
Muffler Quantity |
2 |
Outlet Diameter (in) |
2.5 |
Sale Category |
Exhaust |
Muffler Part Number |
Kit Only |
Muffler Series |
Super 40 Series |
Tip Quantity |
2 |
Tail Pipe Diameter |
2.500 in. |
2WD/4WD |
2WD |
Heat Shield |
No |
System Type |
Crossmember-back |
Tip Diameter (in) |
3 |
Single or Dual |
Dual |
California Proposition 65 Chemical Name 2 |
Chromium (hexavalent compounds) |
WARNING CA Proposition 65 |
Yes |
Title |
Flowmaster 817174 Header-back System 409S - Dual Rear Exit - American Thunder -Moderate/Aggressive |
Outlet Outside Diameter |
2.500 in. |
Tip Diameter |
3.000 in. |
Muffler Count |
2 |
Exhaust Series |
American Thunder |
Tubing Diameter |
2.500 in. |
Exhaust Type |
Dual |
Outlet Diameter |
2.500 in. |
Brand |
Flowmaster |
California Proposition 65 Chemical Name |
Chromium (hexavalent compounds), Nickel (Metallic) |
Emission Code |
5 |
Exit Position |
Dual Out Rear |
Heat Shield Attached |
No |
Exit Style |
Straight |
Inlet Diameter |
2.500 in. |
WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
California Proposition 65 Required |
Yes |
Inlet Diameter (in) |
2.5 |
Material |
409 Stainless Steel |
Product Type |
Exhaust System |
Single Dual |
Dual |
Sound Level |
Aggressive / Moderate |
Tubing Diameter (in) |
2.5 |
Warning |
California Proposition 65 |
Length |
15.0000 |
Width |
19.0000 |
Height |
64.0000 |
Weight |
72.0000 |