Quote:
Originally Posted by SM5654
Just installed HFC and exhaust... Have any of y'all heard a hissing noise when you let off the throttle? Wasn't here til after the install... Any thoughts Tony? It goes away when I throttle back on, weird.
|
It is totally fine. It has nothing to do with the X Pipe though. The sound is actually there when the stock exhaust is on, you just have to listen very closely to hear it! All aftermarket exhaust systems will promote it, not just ours. As you relieve more back pressure and modify the car further it becomes more prominent. That is why it is minimal with just the CBE but when LTH's are thrown into the mix it is louder.
Thanks, Tony