[humdizzle]

not sure what he's going for here. if want to bump the top speed to 150mph.. .then yeah you don't need to change much.

If you are talking about maxing out the stock gearing limit and shoot for 170-200mph or more. Then yeah you are gonna need way better brakes that can handle those sort of stops from 180 to 70mph over and over without over heating. I doubt the stock brakes could handle one hard 180-0mph test without cooking themselves.

Stock tires are rated to 165ish.. so if you plan on doing more than that you are definitely going to want to swap tires with a higher rating.

Wheels.Well theres a reason all pro racing teams and higher end cars use forged wheels made by Rays (volk, gram light), BBS, Enkei, HRE. I understand not everyone wants to shell out 4k+ for wheels but you get what you pay for. The cheapo wheels you get off tire rack for 250/wheel liekly have no certification or R&D behind them. no structural engineering.

Again if all your shooting for is like 10-20mph increase in top end. i wouldn't worry about any of this.