Hey GP owners, I just put on my FWI last night on my '99 GTP . Today on the drive home from work I mashed it and it would like hold and hesitate at 4000RPM, is this knock because I have no exhaust mods? Also before i put the intake on i was throwing a P0102 Code, and I threw a new MAF in it and i cleared it and it didnt come back on, now it has come on twice since the new MAF installed... faulty MAF? any suggestions?
Thanks!