Trask Big Sexy 2-Into-1 Exhaust For Harley M8 Softail This compact exhaust features a 3 step header that dumps into a high flow collector backed up by a sawed-off performance muffler designed to support the wildest M8 builds! This pipe won't come to life for anything under 140hp so don't throw it on your stock 107! Features: Optimized for M8 engines making 140hp or more Proudly researched, developed, and manufactured in the USA