The 4age 20v Diaries
The blacktop has lighter internals which might be also weaker, but it's kind of faster. No harm if you're not undertaking any large mods, but any forced induction and you'll be needing to uprate the blacktops internals.The high res injectors have another clip to low res injectors so you might really need to get some new clips.Cheers... jondee86yea