hey everyone i have a 94 r1 with dual m2 intakes, greddy 3 piece intercooler piping with custom welded BOV, HKS downpipe, Apexi GT exhaust, upgraded NKG heat range 9 racing plugs all over, Walbro performance fuel pump, stage 3 racing clutch and flywheel, Optima Red Top Battery, K&N oil filter and royal purple oil, and a FMIC i have yet to install. What should my next upgrade be apexi power fc? or something else?

 

The power FC should have been yours first upgrade.. besides reliability mods/fixs. After that maybe some 1300cc secondarys and then get it tuned. I'd get a compression check to see if your engine will be okay with all those upgrades as well.

 

Definitely the PFC! Then as stated, get a fuel system and get a tune!

 

^^

 

Yup... put that PFC in first, tonight, right now! (It's imperative you follow the instructions for installation and learning idle though)

Next I'd look at the reliability mods... aka, your Radiator (is it all aluminum?), AST (Air Separator Tank), vacuum hoses (have they been replaced with silicon or viton?) and coolant hoses.

I'd make sure the car is running in top condition and everything which could go bad (this IS a 15 year old car, with VERY high under-hood temps) has been replaced with fresh before you start pushing for more power...

But that's just what I would do =)