Originally Posted by ColdList
Well that puts a decisive end to that!
Just making sure this is read correctly...To clarify (and correct me if I am wrong) the exhaust valves being wired open has no side effects other than louder note (slightly). That was my experience. There si no hissing or humming whatsoever. Now having modified OEM without valves and different piping it sounds fantastic.
Correct (on the side effects)
I think the hissing/humming is something some very sensitive drivers might hear. Probably not folks looking for a more pronounced exhaust note