What size is Thermal R&D NA Cat-back application ?
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From: TX
What size pipe is Thermal R&D NA Cat-back application ?
Hi, I know that Thermal R&D makes a 3inch cat-back for a B16 motor which would be best if used in a turbo application. But what is the size of the piping in the NA version ? Is it 2.25 or 2.5 ?
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