Designed specifically for big bore engines

Near stock sound levels and deep pleasing tone while providing lots of torque

All stainless steel construction and internal disc design for durability and low maintenance

Integrated forest service approved spark arrestor for safe riding

Patented Supertrapp tunable disc technology (discs included)

Adjust sound levels and power band by adding or removing 3" internal discs

"Pillow Pack" Packing last longer with superior silencing