Quote:
Originally Posted by drizzit
What mods can be done in the LT4 without requiring a tune? CAI, headers? Small od% Pulley? Etc
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CAI - yes, but you are more often going to screw up the car than improve it.
Headers - no.
Pulley - no.
... and some items in the etc. category:
Throttle body - gives temporary butt dyno improvement, until car relearns and then no better than stock after 2 weeks. When combined with a CAI, increases likelihood of a CEL.
Throttle controller - more likely than not to throw a CEL, but can give butt dyno improvement. Usually a used one pops up on these forum classifieds every month or so.
Bottom line: if you want to improve the car's performance in any way, you'll need a tune. At which point your warranty is toast. Otherwise you're just throwing $ at your car for bling.
Your money, your car. Do whatever makes you happy.
