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- 16-gauge 1-3/4", 1-7/8" two-step primaries with a 2-1/2" collector
- Spherical port caps to insure sealing
- 18mm and 12mm O2 bungs
- P-clamp mounting to the included transmission side cover bracket allows the system to expand freely
- 4" slash cut muffler body with a 2-1/2" inlet
- 2-1/2" high-flow absorptive baffle with 3" reverse cone outlet to maximize torque
- Combination stainless steel and high-temp fiberglass baffle wrap
- Aluminum billet tip with heat-resistant black finish
- Use with optional insert P/N 663421
- Made in US
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