- Massive 4" non-tunable bodies
- Streamlined, internal tapered, billet aluminum end caps with recessed fasteners are preinstalled
- Inlets shaped for better flow into OEM headpipe as well as SuperTrapp True Dual Headpipes
- Provide a bold, strong power curve from mid-range on up with a significant horsepower and torque gain over stock mufflers
- Classic deep and heavy Kerker rumble is 5 dB over stock
- Made in the U.S.A.