newb question... what size throttle body?

[20BlackGT03]

hey i have an '03 GT with 4.10s, o/r h and catback, 85mm c&l maf, steeda pulleys, c&l upper plenum.

i have an opportunity to buy a BBk 70mm Throttle body and space used for 80 bucks. the throttle body is in good condition and its a friend of mine that is selling it so i know him. Should i stay away from used?

and for my car is 75mm better than 70mm? or is 75mm kinda overkill... OR is neither going to do a damn thing for 80 bucks

thanks

 

[nwapache]

no significant difference between 70 n 75 unless you are getting into big HP add ons....you need to get an intake plenum to go with it, 80$ is pretty decent price so i'd say grab it up

 

[03ghoststang]

what size is your C&L plenum???? but my vote goes 75mm

 

[GDawg]

what size is your C&L plenum???? but my vote goes 75mm

If the C&L fits a 70mm TB it will fit a 75mm TB. I need to get off my butt and sale mine on ebay.