The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank. Motorcycle 05-08 Honda CRF450R 444,449 1. parts that are used exclusively in competition on race only vehicles.
At first I was skeptical. Being a desert racer I have to be below the 96 decible range and first test gave me a 94 with the sparky in it. Power improvements seem to be noticeable everywhere too.