Hi Guys, Just bought a vr6 that was tuned by stealth racing it has a bmc carbon filter a chipstar chip and a cat back supersprint exhaust system. The first few days it was running like a dream now when i start it up it feels as if it choking and trying to clear its throat then it will just die on me!! When it eventully starts again 0ne harsh rev and it cuts out!!! Please help me!!! Regards Neil P.s. Excuse the spelling im late for work.