
09-02-2014, 04:20 AM
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CC Member
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Join Date: Nov 1999
Location: Brisbane, Australia,
Q
Cobra Make, Engine: Contemporary CCX3117 427FE
Posts: 4,381
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Not Ranked
I had a 3" perforated inner pipe and a 5" outer on the old blue car. Allowed it to breathe well and with a full inch of packing around the perf pipe gave it a pretty mellow exhaust note (at idle anyway).

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Craig
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