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chops · 03-10-2011, 05:44 PM

there is definitely rasp if you add test pipes (resonated or not) or high flow cats to the nismo exhaust. i believe the H pipe is the culprit here. the new cats/tp's go from 2.5" pipe to the 2.25" flex pipe flanges, which end at 2" to the midpipe/resonators.

a member in the nismo forum said he added a custom 2.5" x-pipe which got rid of all his rasp. im determined to go this route as well...as soon as someone makes one!

03-10-2011, 05:44 PM	#18 (permalink)
chops A True Z Fanatic Join Date: Oct 2010 Location: NA Posts: 1,732 Drives: NA Rep Power: 22	there is definitely rasp if you add test pipes (resonated or not) or high flow cats to the nismo exhaust. i believe the H pipe is the culprit here. the new cats/tp's go from 2.5" pipe to the 2.25" flex pipe flanges, which end at 2" to the midpipe/resonators. a member in the nismo forum said he added a custom 2.5" x-pipe which got rid of all his rasp. im determined to go this route as well...as soon as someone makes one! Last edited by chops; 03-10-2011 at 07:35 PM.