as the title states my brother has an 04 cobra with a hellion 76mm turbo kit and he had it tuned but they could not get it to idle smooth and when you back out of the throttle it will try to die if you don't give it gas, with the hellion kit it is a sick throught and the mas is pretty close to the turbo. he is thinking of switching to a blow thru mas but the location on the kit is limiting on were he can put the mas !