i know there are fuel solutions for F/I vehicles, but I definitely don't need all of that. My current mods are z-tube, pop, and 5/16th iso. I have in my garage, headers, hi-flo cats, mid pipe, and catback. Will the addition of all of the exhaust components, will I lean out my stock fuel system too much? if so, what fuel system mods do I need to compensate just enough to support the bolt ons I have?

 

Uprev. Along side of correcting your AFR, you will gain HP as well.

 

no those things shouldnt lean you out to much, the ecu should be able to adjust accordingly. And as pepper said add uprev ull be good to go!!

 

uprev is compatible with an 03 sedan? i was under the impression there was no tuning solutions for the lowly 03's

 

I have uprev on my 04. Same engine. You're good.

 

yeh, the 03's had an ECU change halfway through production apparently. Although I have an 03.5, I have the earlier ECU which gives the 1 finger salute to all tuning options. Uprev said no bueno on an 03 ECU. guess i'm out of luck with them.