Hallman Pro Manual Boost Controller, Purple - PRO-04 Ignition Coils Stay Frosty Hi-Performance Coolant is

Stay Frosty Hi-Performance Coolant is a ready-to-use

up to 3400 FWHP – naturally aspirated

& Play Adapter Cables available for Holley

Simplified Wiring

COBB Aggressive and COBB High Torque Aggressive maps increase the auto shift limit to a maximum of 7400RPM

Hallman Pro Manual Boost Controller, Purple - PRO-04 Ignition Coils Stay Frosty Hi-Performance Coolant isOur new Hallman Pro kit contains our new Hallman Pro valve. The new Pro valve is machined out of billet aluminum and stainless steel pieces. The new design of the valve incorporates some great new features not currently available on any other manual boost controller. We have designed the Pro valve to not require the use of a lock nut or any type or allen wrench(s) to be able to adjust your boost. Simply turn the adjustment knob and it stays. Another