DescriptionMUFFLER INSERT- SUZUKI DRZ400/ KAWASAKI KLX 400Our baffle was designed to replace the stock insert. The baffle produces a nice note compared to the derestricted stock version and dyno test results showed an increase on 2 hp up top.A noise test on the insert was conducted at the EPA Victoria Vehicle Test Station at Macleod under controlled conditions with Class 1 meters.
