figured i would throw this on this forum as well as s2ki see if anyone has some input over here...i just bought a 2003 s2k mods are..

injen CAI
dc header, invidia catback
skunk 2 full coilovers
skunk 2 stage 2 cams

now the problem is I got the check engine light for all cylinder misfires, I have replaced coilpacks, plugs, map sensor...still light came on. I did all of those things due to 85k and all stock figured should be done anyway before doing the injectors as ive read could likely be the problem. so i picked up some 370cc RC injectors off a board member.

Question is do i need to tune for these? the stage two cams are not tuned...not even sure it has them just taking POs word on it. so with just putting them in would that help the cams (if it has them) I hear that the RC 370cc injectors from what i have read are actually flow tested and came up with 400cc somewhat larger difference. Also from what i understand stocks are 360cc? correct me if any of this is wrong. now if they would need tuned what kind of program would be the best way to go? dont plan on boosting so i dont need anything too crazy. thanks for the help...Also i relocated the CAI so its not able to get water in, had a few people tell me that could be a problem but no luck

 

get a tune...

 

indeed needs a tune. tune on either kpro or the aem version 2.

 

y would anyone run "stage2" cams with no tune is beyond me. first find out if u actually have aftermarket cams and go from there. im pretty sure the stocke injectors are capable of keeping up with them getting bigger injectors wont do anything