Description
Overview
The Flowmaster American Thunder Crossmember-Back Exhaust System is built for the enthusiast who wants a true dual exhaust with a bold, unmistakable voice. Engineered with an easy fit in mind, this complete crossmember-back system replaces your restrictive factory setup with mandrel-bent tubing, a built-in H-pipe crossover, and a matched pair of high-flow mufflers that deliver a moderate-to-aggressive exhaust tone from behind the rear wheels.
Constructed from 16-gauge, 2.50-inch mandrel-bent stainless steel tubing, this system is designed to move exhaust gases efficiently while standing up to the road. The 2.50-inch inlet diameter and integrated H-pipe crossover work together to balance flow between both banks, helping unlock the throttle response, power, and mileage improvements Flowmaster exhaust systems are known for.
Sound & Performance
At the heart of the system is a pair of specially selected Super 44 Series performance mufflers. These deliver an aggressive-to-moderate exterior sound tone paired with a moderate interior tone — loud enough to announce your presence outside, comfortable enough to live with on the daily drive. If you want your performance to be heard without an overwhelming in-cabin drone, this combination hits the mark.
Key Benefits
- True dual crossmember-back design with built-in H-pipe crossover for balanced flow
- 16-gauge 2.50-inch mandrel-bent stainless steel tubing for durability and smooth exhaust flow
- Includes a matched pair of Super 44 Series performance mufflers
- Dual tailpipes exit in the factory location behind the rear wheels
- All hangers and hardware necessary for installation are included
- Improved throttle response, power, and mileage
- CARB (California) compliant with Emission Code 5
What’s Included & Options
This kit ships complete with the mandrel-bent tubing, the pair of Super 44 Series mufflers, and all the hangers and hardware needed to get the system on your vehicle. The muffler is supplied as part of the kit only. Exhaust tips are sold separately, so you can choose the finishing look that suits your style, and note that heat shields are not included with this system.
Fitment
This American Thunder system is configured for 2WD applications and features a silver pipe finish with dual tailpipes routed to the factory exit location. Always confirm your specific vehicle application before ordering to ensure a proper, easy fit.
Backed by Flowmaster’s Lifetime Limited Warranty, the American Thunder Crossmember-Back Exhaust System is the choice for drivers who want proven Flowmaster tone, performance, and build quality in a complete, ready-to-install package. Please note this product carries a California Proposition 65 warning.
