Best MBC> turboxs, turbosmart, turbonetics, hallman pro
 

Which ones do u find work the best?

They are all pretty much the same.

only the odd ones hold boost steady. I never recommend these to customers with high quality builds.

To me, they're all the same, so pick whatever. I've seen turbosmarts hold boost fine, and also spike and cant hold boost.

Hallman...seem to hold pretty steady.