Hallman Pro Boost Controller (High-Boost 15+ PSI) Select Color::Gunmetal • Fits GSR Manual Transmission

• Fits GSR Manual Transmission

Whiteline alloy products are anodized providing a long-lasting protective barrier to corrosion and wear but they look great too

Each knob weighs 188g / 6

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makes it an easier point to choose this easy simple upgrade

Hallman Pro Boost Controller (High-Boost 15+ PSI) Select Color::Gunmetal • Fits GSR Manual TransmissionThe Hallman Pro Boost Controller is one of our favorites to use! Up to 60+ psi, it's been proven again and again to work! The valve is machined out of billet aluminum and stainless steel pieces, available in 6 anodized body colors. The Hallman Pro was designed to not require the use of a lock nut or any type or allen wrench to be able to adjust your boost. Simply turn the adjustment knob and it stays. The adjustment knob cannot be lost or come out of