Good day can anyone give advice on what is a good throttle body to use for a daily driver. My car currently has an AMS VSR Intake Manifold with a KU Engineering 70MM Throttle Body but refused to drive or idle smoothly and only works perfect at WOT.


I am considering replacing the KU with the S90 70mm Throttle Body, any advise will be appreciated.

 

I just use a 65mm bored out stock TB. Idles well and drives fine.

 

65mm bored stock one would be best for street.

i had a S90 70mm and it was ok... a little querky, but not a big deal.

I have a 75mm boomba now and its not a DD tb.

 

Full blown 70mm here. Only issue I had was the over-tightened clamp that damaged it.
Other than that, driveability is not an issue. Idles fine.

 

I have a boomba on my evo and when I daily drove my car it worked fine. Im going to try a s90 pro 74mm throttle body on my dsm. For the price it looks like a good option to go with. Personally I have never been a huge fan of the port stock throttle bodies. I don't really see how you will gain that much by opening up the stock tb 3mm. That's just my perspective though.