817585
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.
Features:
- Premium Quality
- Improved Horsepower, Torque and Engine Efficiency
- Delta Flow Technology
- Super 40 Sound Level
About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.
SPECS
2WD/4WD | 2WD |
---|---|
Automotive Item Grade | High Performance Part |
Brand | Flowmaster |
Emission Code | 5 |
Exhaust Series | American Thunder |
Exit Position | Dual Out Rear |
Heat Shield | No |
Inlet Diameter (in) | 2.5 |
Material | 409 Stainless Steel |
Muffler Part Number | Kit Only |
Muffler Quantity | 2 |
Muffler Series | Super 40 Series |
Outlet Diameter (in) | 2.5 |
Product Type | Exhaust System |
Single Dual | Dual |
Sound Level | Aggressive / Moderate |
System Type | Crossmember-back |
Tip Quantity | Not Included |
Tubing Diameter (in) | 2.5 |
UPC | 700042027484 |
California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
Nickel (Metallic) | |
California Proposition 65 Required | Yes |
Part Number | 817585 |
EMISSIONS
5
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
TECH RESOURCES
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