zhu04gt

I here lots of talk of custom tunes and chips. What mods require a custom tune? What mods require a custom chip? What mods require a new computer?

If it makes any difference, I have an 03gt (yea, I know my name)

doughboy4.6

Well I dont know about a whole new computer. But mods that need a tune cams supercharger or turbo.SCT are the best tuners I have worked with

boostedsvtsnake

you'll want an aftermarket ECU if you make over 550-600 rwhp. after that point the EEC is becoming a restriction to HP