Quote:
Originally Posted by SFCM3
Just run test pipes, have a competant exhaust shop add a flange to the back of the pipe, and to the back of the primary cats after cutting them off. that way you can swap out the test pipes on track days. seems to be the only solution it you want oem sound levels outside the track...
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That's interesting...didn't know the primary cats could be swapped out for a track day.
There's another thread in here that I was reading that says it can't be done (once the primaries are removed they cannot be reinstalled).