Ecstasy

k i have a 97 cobra, i dont believe i have any issues with them, or not that ive realized but im curious. ive talked to 2 people that do nothing but work on mustangs 24/7, the guy at this dyno shop is telling me to delete the IMRC's because they all have issues, and that with a tune i wont lose anything.

on the other hand a guy that i know is telling me that if i delete them ill lose quite a bit of low end tq.

now im going to stay n/a with stock heads/intake, im just doing boltons, so what should i do. what did you do if you own a 96-98 cobra.

97targa

I lost a bit when I zip tied them open because my module was bad. If you delete them you need 4:10 gears to compensate for the loss down low. The 4:10's or 4:30's will bring the roms up higher to give you some hp fatser. With the redline up high on the cobra's 4:30's are doable with the T-45. I don't car what tuner you have, your gonna feel slow of the line. My 2v non-pi was faster off the line than my cobra with the IMRC's deleted or "ziptied open"

Fobra

I wouldnt do it if I were staying N/A, however with FI there is no reaosn not to, and once you port and polish, B heads are on par with the best of the best

Ecstasy

yea well mine arent bad but im just going to clean them anyways. just to prevent any issues from happening.