American Thunder™ 409 SS Axle-Back Exhaust System with Split Rear Exit (817751) by Flowmaster®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 2.5". Exhaust System Sound: Moderate. American Thunder exhaust system is perfect for the person looking for a moderately aggressive sound level outside of the car, while maintaining a mild sound level inside, with all of the performance benefits that you would expect from Flowmaster. American Thunder gives you the classic sound of a Flowmaster chambered exhaust, which is the classic sound of classic American big performance engines. This is a system that gives the most sedate vehicle a performance rumble.
- Large 4.00-inch Polished Stainless Steel Tips
- Dyno-tuned For Maximum Performance
- Race-proven Outlaw Series Mufflers
- Stainless Steel Construction
- Lifetime Limited Warranty
- Full Mandrel-bent Tubing
- Deep Powerful Sound
- Exhaust system type - Axle-Back
- Exhaust tubing material - 409 Stainless Steel
- Exit Location - Split Rear
- Exit Configuration - Dual
- Main tubing Diameter - 2.5"
- Exhaust system sound - Moderate
- Muffler inlet diameter - 2.25"
- Muffler outlet diameter - 2.5"
- Muffler series - Outlaw
- Muffler quantity - 2
- Muffler body material - 409 Stainless Steel
- Muffler Body Shape - Round
- Muffler type - Welded baffle
- Tip quantity - 2
- Tip finish - Polished
- Tip material - 304 Stainless Steel
- Tip type - Double wall
- Tip outlet diameter - 4"
- tip length - 5.25"
- tip shape - Round
- Tip cut angle - angle-cut
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