Hey all! Well i just installed my Yoshi rs-3 comp series slip on pipe, the fit on the pipe works perfect and is a very solid mounted pipe....just follow the order it tells you to put it on and it will all fit nicely. After it was all put on and started up she had a very very deep nice idle and when you crack the throttle it almost deafens you (VERY loud) i also got the 96db tec insert with it and had a chance to try everything out last night and some today. My results were as follows.... without tec insert the bottom and mid range pulled insanely hard along with the top rpms..(passed 7 thousand) was the same as my end-cap, i then put the tec 96 db insert in and was surprised on how quiet it was at idle, but then when you pinned her down the road she had a very very crisp sounding likable noise with very little power decrease and good top end power. The pipe is very good looking on the ds and super well made all very solid and looks well built. Overall it was definitely worth the big money. Good power increase, no more rattle trap stock muffler, and very good sound.