70mm or 75mm throttle body

[jlds91389]

im about to order a throttle body and cant decide between 70 or 75 mm. i will not be adding and type of fi since my car is daily driven. i still have the stock intake with the silencer removed and a k&n filter and intake spacer. so my question is will a throttle body be worth it and what size should i go with? thanks

 

[stangnutlx]

75 is too big for an NA application.

 

[98COBRA281]

75!!! dont waste you time!, if you go wiht a 70 you will always wish you went with a 75. get a ruler and see what 5mm looks like, its nothing! and not to big for N/A cars....

 

[jlds91389]

so will i feel any gains with the stock airbox with the silencer removed or will i just be wasting my time with either throttle body?

 

[streethorse]

If you want to feel a gain you might as well do a TB and plenum.
I use the stock air box in the summer, but an open filter in the winter.

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[jlds91389]

i will be getting the plenum later on.

 

[Mr. Rustypwnz]

the plenum is cheaper and makes more power, get it first, port your stock tb.. cai mandatory..