Hallman
"Hallman Boost Controllers has been in business since 1995. They offered the first closed loop manual boost controller at an affordable price. Their boost controller offers the fastest spoolup of your turbo, steady boost and easy adjustability.
In August 1998 Turbo Magazine said ""The Marc Hallman Boost Controller is one of the best manual boost controllers available on the market."" The Hallman Boost Controller has been proven to outperform the much more expensive electronic units in turbo spoolup. It is no wonder Turbo Magazine gave them such a great compliment.
Hallman Boost Controllers are machined and constructed of high quality materials. They use billet aluminum, stainless steel and brass materials for their valves and internals. This insures a long life of the product and repeatable performance. Their Pro series valves were redesigned in 2002. We continue to offer a lighter spring to help make the adjustment less sensitive. The bodies are CNC machined, then polished and anodized for a superior appearance and durable finish."