If u guys had a 1jz with a 60 trim what intercooler pipeing would you rather have 3" or 2.5" ?? i found through all the searching on here and supra forums everbody has mixed reviews, no solid factor that would prove one better then the other. Anybody know what is best and why?

 

hot side match the piping to the output on the turbo ( probably 2.5")

cold side match it to your intake size (factory is 2.75")