Cheap manual boost controller

[aleph1]

Hey all

Im looking to get a manual boost controller than actually WORKS well, as my HKS turbo actuator is maxed at 12 and Id like to hit 14-15psi, so it seems not worth it to spend nearly 300 bucks on a profec for 2-3psi more. Any recommendations?

thanks

[da40]

man just by a cheap one of ebay....20bucks max does the job and i dont get anykind of boost spike from it too,besides cant go wrong with 20 bucks

[aleph1]

ball and spring or needle valve...?? which is better?

[teddy]

http://www.joepmbc.com/mbc.html