I'm not so sure you'd want to eliminate the rev limiter, because if you're going to race it, it'll be easy to take your engine beyond any safe rpms for the engine, modded out or not. The thing I'd do is just upgrade to an ecu that increases the rev limiter, not completely remove it. But that's just me, playing it safe
Whatever doesn't kill you, will only make you stronger. Learn from your mistakes, and you will prevail equally.
1986 Oldsmobile Cutlass Supreme = 231 cu.in. Buick V-6 Stock hp: 110 Current hp: 120-130 Est e.t.: 17-18
1993 BMW 325 is = 200ish straight 6 Stock hp: 189 Current hp: 230-240 Est e.t.: 12-13
Looking for hp gains on both, aftermarket body parts for the BMW. Hit me up if you got anything and maybe we can work something out.