American Thunder Cat-Back System

Flowmaster 817664 American Thunder Cat Back Exhaust System When you're out on the road cruising in your sweet ride, you don't just want to be seen. You want to be heard, felt even. The deep reverberations of a powerful exhaust system capture the missing piece of a vehicle's ...Flowmaster 817664 American Thunder Cat Back Exhaust System When you're out on the road cruising in your sweet ride, you don't just want to be seen.

You want to be heard, felt even. The deep reverberations of a powerful exhaust system capture the missing piece of a vehicle's personality. But it's not all talk around here.

Lean, mean and ready to leave others in the dust, the Flowmaster American Thunder Exhaust System is everything you need to elevate your ride's personality and boost its performance. This isn't your average exhaust system. Constructed with corrosive-resistant aluminized steel, the American Thunder Exhaust System does more than just roar.

You'll see better gas mileage, airflow and up to 10% in horsepower gains thanks to a chambered muffler and mandrel-bent tubing. Get your vehicle's thunderous vocal muscles exercised while enhancing your performance and catching stares along the way. Your custom-engineered American Thunder Exhaust includes stainless steel tips that'll complete the look, sound and feel of a vehicle that's got something to say.

Select a single or dual-exit exhaust for the preferred location (rear or side).