nitrousaddict

Every engine has it's own quirks that can be exploited for more horsepower, better throttle response, etc. What are the ones for the 4.8/5.3 vortec? Ive heard talk of the TBC bypass, MAF relocation, and insulating the fuel lines, but do these really do anything? and are there any others out there?

Atomic

iTrader: (42)

The best value thing you can do to them would be to get it tuned, and maybe replace the intake tube (airbox/filter is fine). Don't waste your time with the stuff you mentioned.