No, it it was an all around improvement. It also gives your engine a nice sound without blowing out your neighbors windows.
I think I purchased it from Bikeberry, but I have been having a lot of problems with them lately. Everything I order has been out of stock and you can not tell from the website. Sickbikeparts sells an expansion chamber exhaust, which I just received and you can adjust it to your liking, and they ship the same day depending on when you put your purchase order through. I prefer this one to Bikeberry's. It is also sold in chrome as well. They also update their site daily, so you don't purchase anything that is out of stock
Last edited by IINoxiousII; 06-27-2012 at 10:12 AM.