Hallman Manual Boost Controllers (MBC's) are one of the best turbo boost controllers on the market. All Hallman MBC's provides quick spooling, steady boost levels and easy adjustment. Constructed from billet aluminum and stainless steel for long-lasting and reliable performance. The anodized body provides a sleek, durable finish and is offered in Black, Red, Blue, Purple or Silver. To adjust the boost simply turn the knob and go. With the Pro RX Kit there is no allen key or lock nut to fumble around with, the knob is designed to stay in place. There is no risk for overboost since the adjustment knob cannot rattle loose and detach.The RX Valve incorporates a ceramic ball as opposed to the standard stainless steel ball. With the weight savings this valve can act much quicker to pressure changes and allows greater control over boost levels. In addition to the lighter ball, this kit also includes a lighter spring which provides very fine adjustment for up to 5 psi over stock levels. This kit is intended for projects where only a few pounds of boost are being added and precise, consistent control over that range is required. A heavy spring is also included with each kit incase you want to increase by more than 5 pounds and still reap the benefits of the ceramic ball. Each kit includes: Pro RX Valve w/ Ceramic Ball, light spring, heavy spring, standard barb fittings, 3' black vacuum line, mounting bracket, hardware packet and complete installation instructions.In order to increase boost safely Hallman recommends waiting to install a boost controller until after you have upgraded the intake and exhaust to allow your engine to breathe freely. An aftermarket boost gauge is also recommended so you can accurately monitor boost levels, the stock gauge is not accurate enough for this purpose once you exceed stock boost levels.
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