I got a candlestick I lost my baffle on the techno estroil sidebleed plugged the back with a hex and ran a stack. A Tomos outside muffler section 7" and ran it to bottom epoxied it. Its held 3 years. Bug boost bottom and top. No restriction and its silent when it hits it groove @35mph loud idle and deceleration 3 peat chugs brapppbapbap.