i do not have them personally but a buddy of mine has them on his 68 skylarke. He has 2 1/2 in. pipes flowmasters and cut outs. when he opens them up you can not even tell that it is still running thru the mufflers. Sounds like straight open headers to me.
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1968 swb
IM-Bufechevy56
If its to loud then your to old
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