Quote:
Originally Posted by jmlenz
I have asked this question and never got a straight answer...does anyone know what is the actual cause of this hiss noise? I have the FI CBE + FI test pipes and the hiss is pretty loud already, I imagine with the LTH its even louder. Its a tradeoff for the killer exhaust note but if I had a choice I would eliminate the hiss.
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The hiss is almost the same with the headers as the test pipes. The one trade off is the headers promote less drone inside the cabin because they promote a higher exhaust note. The exhaust will not be as deep and bassy. Some may like it and some may not!
As far as what causes the hiss, I do not have a definitive answer so i do not want to speculate. Obviously the sound is promoted by aftermarket exhaust components because the tubing wall is thinner and the sound escapes easier.
Tony