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slartibartfast said:
A true "H" pipe is proven to improve exhaust flow due to pressure pulse tuning. I haven't looked under my car yet to see what you're describing but I'll be it's the same concept. Sort of a 3-2-1 exhaust design instead of 3-1.
no the front manifold goes under the pan and straight out, the rear manifold goes under the pan as well but curls back for some restricted exhaust flow :****:
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