I have heard great things about the HKS EVC5 EBC. Also as far as MBC's the best I have heard about is the Hallman Rx pro several of my friends have them and can't rave enough about them.

 

why you bump the thread 3 minutes after you posted? chill brotha. i have the profec b spec 2 in my current car and it works great. i don't know why people around here don't like it, most people in the 300zx/240 world love it. its fairly easy(far less complicated then the avc-r or blitz units.) and could someone answer my question about the heavier spring please?

 

I would strongly recommend the manual boost controller. I've seen too many engines get toasted because of malfunctioning electronic boost controllers. The key with EBC's is that you have to constantly watch your boost gauge for over boosting. You can get the turbo xs dual stage boost controller which comes with a toggle switch for the interior of your car for controlling hi boost and low boost.