Posted by TGP (IL) [64.12.116.76] on Wednesday, January 20, 2010 at 18:25:31 :
In Reply to: O.T exhaust question.... posted by chrisnj [68.39.48.179] on Wednesday, January 20, 2010 at 18:09:07 :
No it's not really needed.
If my memory is even close to working,there to help quite the "cackle" and certain low freq. drone or rumble.
And they add more restriction (back pressure).
I'm sure copey knows ,lol.
TGP
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