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ProStreet68SB · 01-16-2009, 10:10 AM

2 1/2 will be more than enough for a stock 402, if you dont mind a little raspiness in your exhaust, then i'd run dual 2 1/4" with an H pipe, would give that more some help with the bottom end torque that it already has.

01-16-2009, 10:10 AM	#6
ProStreet68SB The Engine Whisperer Join Date: Sep 2006 Location: Ohio Posts: 770	Re: Exhaust help 2 1/2 will be more than enough for a stock 402, if you dont mind a little raspiness in your exhaust, then i'd run dual 2 1/4" with an H pipe, would give that more some help with the bottom end torque that it already has.