Well gents in my openion SVS is a result of changing things from stock to what you want to add. All I had done to my 05 bike was add HK K2 pipes and windshield. At 3000 miles the rear cylinder quit the dealer said it was fouled plugs replace them and charged me for it. I took it back 5 times and the dealer never got it fixed right. I finally did all the jetting work myself and got it fixed after many tries. As far as I am concered the dealer is the one that screwed it up and caused my SVS. I have put 8000 miles on it now after fixing it and haven't had a problem one and I'm pushing 20,000 miles. She runs great as it sould and I am really pleased with it. The wrenches at the dealers don't have the time or know how to devote to it like I did. The dealer charges you every time you bring it in no matter what and my pockets arn't that deep. I have a 19 yo stepson that is a better wrench on the R* than the ones at the dealer I took it to. He learned right by MY side. The dealers are the problem if they did it then they should fix it no matter how many tries they have to do it.