Hi sorry to have one of my first posts as a help me one!
I have a series one stagea with, fmic, full exhaust (turbo back) induction kit, and the free boost mod well thast all the engine mods. I had hesitation thru the revs so fitted new uprated coil packs and sparks but now when gunning it it gets to 4.8k and coughs , in a kinda cut out way, for a second then carries on pullng like a train.
any ideas?
cheers!
oh and some stagea pics for you.