Throttle body spacer
I just put in a new flowmaster muffler and cat, and I am going to upgrade to a K&N FIPK intake, 62mm throttle body, put in the 99' intake manifold, and a new exhaust manifold, but the only thing I am not well versed in are throttle body spacers.
I figure, Im already spending over a thousand bucks in upgrades, whats another ~40-60 bucks? I have checked auto zone, and looked on ebay, and they all seem to be pretty different; different flow patterns and such. Any suggestions on ones I should get?