Description_ASC |
Does Not include header reducer cones or downpipes for factor manifolds. |
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/Super 40 Series (TM) Mufflers/Dual Straight Tailpipes; 409 Stainless Steel; |
Description_FAB |
H-pipe Crossover for Maximum Power and Deep Tone |
Description_FAB |
Super 40 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_INV |
68-70 MOPAR B-BODY 2.50" AMT 409S |
Description_MKT |
The American Thunder system is for the person who is looking for a complete crossmember-back dual exhaust system with a deep powerful sound. The system is constructed from 2.50-inch mandrel-bent stainless steel tubing and includes an H-pipe to balance the exhaust pulses and to eliminate back-rap on deceleration. The large cased Super 40 Series performance mufflers generally deliver a moderate interior tone with a deep powerful exterior sound which is suited for enthusiasts who want their performance to be heard. The mandrel-bent tailpipes exit straight out the back under the rear bumper for a strong muscular appearance and allows you to select your own style of tips. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation and is covered by our Lifetime Limited Warranty. . |
Description_SHO |
Exhaust System Kit |
Tip Shape |
Round |
Title |
Flowmaster 817390 Header-back System 409S - Dual Rear Exit - American Thunder -Moderate/Aggressive |
Inlet Diameter |
2.500 in. |
WARNING CA Proposition 65 |
Yes |
Material |
409 Stainless Steel |
California Proposition 65 Chemical Name |
Chromium (hexavalent compounds), Nickel (Metallic) |
Inlet Diameter (in) |
2.5 |
Outlet Diameter |
2.500 in. |
WARNING CA Proposition 65 Message |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
Exit Style |
Straight |
Exhaust Series |
American Thunder |
Tip Type |
Straight Cut |
Exhaust Pipe Wall Max Gauge |
16 |
Heat Shield Attached |
No |
Tail Pipe Diameter |
2.500 in. |
California Proposition 65 Required |
Yes |
Heat Shield |
No |
Muffler Quantity |
2 |
Outlet Diameter (in) |
2.5 |
Product Type |
Exhaust System |
Single Dual |
Dual |
Sound Level |
Aggressive / Moderate |
System Type |
Crossmember-back |
Warning |
California Proposition 65 |
California Proposition 65 Chemical Name 2 |
Chromium (hexavalent compounds) |
Exhaust Type |
Dual |
Automotive Item Grade |
High Performance |
California Proposition 65 Chemical Name 1 |
Nickel (metallic) |
Muffler Count |
2 |
Outlet Outside Diameter |
2.500 in. |
Single or Dual |
Dual |
Mount Type |
Uses New Hangers (Included) |
Inlet Inside Diameter |
2.500 in. |
Tubing Diameter |
2.500 in. |
Tip Diameter |
2.500 in. |
Muffler Series |
Super 40 Series |
2WD/4WD |
2WD |
Brand |
Flowmaster |
Emission Code |
5 |
Exhaust Pipe Wall Maximum Gauge |
16 |
Exit Position |
Dual Out Rear |
Tip Diameter (in) |
2.5 |
Tubing Diameter (in) |
2.5 |
Length |
12.0000 |
Width |
18.0000 |
Height |
65.0000 |
Weight |
67.0000 |