Sound and power are coming. This unit is headed for the Dealer Show in Indy on Thursday and Im going to Worcs so power and sound will have to wait until it returns from the show. Look for more info on this system, a full race system, and a bunch of other accessories coming soon from Yosh.
Im gonna have to say it doesnt make anymore power just more noise. It will be lighter than a stock muffler but thats it.
The reason I say this is I have seen over the years with the Cats that aftermarket exhausts actually lose HP. and Torque. at:
They might be able to bundle it with a tuner and intakes to make it all work together but the slip on will be a waste of money by its self.