JHM - Manual Boost Controller - BLUE (standard underhood adjustable) (NLA)

Improve your turbo response greatly and set your maximum boost limit. This is the lowest cost and most reliable underhood adjustable solution without expensive electronics. Note: most successful with our Tuning software.

JHM is proud to be selling this design produced by Hallman. This MBC makes it very easy to set desired boost and is self locking (no more lockdown nuts to worry about). JHM has tested over 5 different MBC designs and this one is by far the best. We are only selling them with the Steel ball since in our testing this is what works best with a B5 S4 (there is a ceramic ball option, but not recommended for the B5 S4).

Includes: Manual Boost Controller - MBC mounting bracket - Hardware -Instructions

Video of where the boost controller hooks up at the engine (this unit hooks up the same as the cable actuated style shown in the video): -->HERE

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