Straight piped for power

FPenvy

i agree with the OP. straight pipes does feel like you're missing some TQ on the bottom.

on top however it feels like it pulls harder than when i have my mufflers on.

running full 2.5" Fast Intentions non-res TP and non-res CBE with custom short tails to match up with the FI system. with FI tips of course

been running mine since march, with a small exception of putting the mufflers back on for inspection.

have not been on a dyno nor re-tuned. everything runs great but the butt dyno does report a slight delay/tw loss on the bottom. WOT feels great so i dont see a AFR issue.

i mean i do have my own personal uprev i guess i could fire up the laptop i test it out lol

Custom Short Tails for Fast Intentions Exhaust

__________________
324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler