If anyone who has a 1991-1995 MR2 with the 5SFE NA motor who is looking to go faster, I have a suggestion, as long as you're OK with having no AC. I removed my tensioner pulley, AC belt, and AC compressor so that the crank would have one less belt to turn. As a result, it knocked .2 of a second off of my 1/4 mile time.