Loudmouth hiss?
Anyways, when I listen to them on ls1sounds.com (stock manifold/cat) and they rev the car when the revs come down near idle it sounds like it hisses a little. Is this very noticeable in person? Can you hear it inside the car?
Tried a search and didn't come up with anything. Thanks in advance.
I've got LT ORY LM and am borlamouthing this weekend. I didn't hate the LM, it's just getting annoying now that I do more city driving. The borlamouth conversion is cheap too, so don't worry if you think you'll want to tone it down later.

