Flowmaster American Thunder Crossmember-Back Exhaust System
Aggressive when you want it. Civil when you don't. Factory exhaust on these trucks was built quiet and cheap. This one starts just after the manifold downpipes and runs all mandrel-bent 2.50-inch 409 stainless the whole way back - full diameter through every bend; maximizing the flow of the exhaust pulses instead of choking them in the turns. Super 44 Series mufflers give any V8 that deep rumble and classic Flowmaster tone; while the built-in H-pipe crossover adds performance and cuts interior drone. Three tailpipe exits; all hardware for an at-home install; short or long wheelbase; and a Lifetime Limited Warranty behind it.
Install Level: Moderate
For trucks WITHOUT a side mounted auxiliary fuel tank - the 817934 system covers side-tank long beds.
Fits both short and long wheelbase trucks.
Built for an at-home installation; all necessary hangers and hardware included.
Lifetime Limited Warranty.
Features:
- 3 Exit Options Allow You to Customize the Look of Your Truck
- 2.5-Inch Mandrel Bent Tubing Improves Exhaust Flow for Better Performance
- Super 44 Series Mufflers Give You a Deep, Classic Muscle Truck Sound
- H-Pipe Style Crossover Pipe Improves Performance and Reduces Interior Sound
- Includes all Necessary Hangers and Hardware for an at Home Installation
- 409 Stainless Steel adds Corrosion Resistance and Durability
- Backed by Flowmaster’s Lifetime Limited Warranty
Material: 409 stainless steel; mandrel bent
Tubing diameter: 2.50 inch
Built-in H-pipe crossover - improves performance and reduces interior sound
Mufflers: Super 44 Series chambered
Three tailpipe exit options: straight out the rear; side exit behind each rear tire; or dumped behind the rear tires
Starts just after the manifold downpipes
Fits short and long wheelbase trucks
All necessary hangers and hardware included
Lifetime Limited Warranty
Trucks WITHOUT a side mounted auxiliary fuel tank.
Short and long wheelbase.
Installs from just after the manifold downpipes.
