Installed the CS type exhaust using 430 can and modified pipes. To my ears, the same as OEM CS system. Quieter than my former Tubi at idle and normal driving. Louder when valves open. Very pleased! To be filed under useless information. Based on MA cracking down on loud exhaust over the past few years(Due to Harley straight pipes primarily). Ran a very unscientific test on the CS style exhaust. Instrument: Reed R8050 Sound Meter. Setting used: Peak dBA measurement. At idle: 84dBA At 3.5~4k rpm: 94dBA Valve opens: 101dBA Placed the instrument at outlet height, 30" out, halfway between outlets. For reference, my understanding, open pipe Harley +110dBA. Never measured Tubi. CA limit is 90dBA I believe. MA not as defined.
Hi, where abouts are you. I'm thinking of a few exhaust experiments and might be interested in a spare......
