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Welcome to the next evolution of boost control, The GrimmSpeed Manual Boost Controller. Introducing the most refined Manual Boost Controller available on the market. We spent over a year working hand in hand with Tuners across the country to devolop our MBC. Our Manual Boost Controller allows you to raise the OEM boost levels in a quick and efficient manner. Adding the MBC will result in Quicker Spool Up, Quicker Response, Increased Horsepower, and Increased Torque.
This is the first of its kind with Exact Control technology utilizing over 250 adjustment points that lock in place using a heavy duty stainless dual ball detent system. An extra long travel spring gives you superior range unmatched by any other manual boost controller while maintaining a high resolution, not some vague guess at where to set your boost. Don't trust the life of your engine to trial and error, rather pinpoint your setting using our rising scale running the length of the controller, lock and load. CNC’d from weapon’s grade 6061 Aluminum and laser etched our MBC will outlast your vehicle! The GrimmSpeed Manual Boost Controller redefines precise control and will promise you the results you demand.
GrimmSpeed was founded in 2006 to provide customers with innovative and highly engineered products.
The company's founder, Justin Grimm, has always had a passion for Subarus. Just like most enthusiasts, he was satisfied with his vehicle's performance stock, but could not resist the urge to see just how much more potential was left untapped. After a few years of perfecting his ideas and techniques on his own personal Subaru, Justin decided to turn his passion into a career. He immediately realized the niche market for Subaru aftermarket performance and founded GrimmSpeed, initially performing all of the work out of his own garage. As the demand for his own high quality products grew, he opened a new shop in St. Paul, MN. Enthusiasts quickly took to GrimmSpeed, and it became necessary to expand even further to a larger location. In January 2010 GrimmSpeed moved into a 6500 SQ FT shop in Minneapolis, MN. This move has given GrimmSpeed the opportunity to expand for years to come.
Due to the extreme weather conditions of Minnesota, GrimmSpeed has unique opportunities to test their products to ensure quality performance. This allows the engineers to take advantage of a very wide range of conditions for product testing. This enables GrimmSpeed to continuously perform research and development on all products and make revisions accordingly.