Originally Posted by PA/XFIRE
JERRY i already have the sl55 complete air intake system w/k&ns installed (which i purchased from let) .If i go with the 181 mm and a tune, what would be a conservative est. of added hp & tqe ? thanks ILLCYA
I would say up to 50whp / 50wtrq with a tune, pulley, and the airboxes.
Our cars vary so much on baseline dynos that it's hard to guess. Some guys are pulling 275whp and others are hitting up to 295whp.
I can assure you that your butt dyno will be reading much higher than 50.
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