Current Specials

    • 19 pts.
Boost Controllers

Grimmspeed Manual Boost Controller Red



Grimmspeed Manual Boost Controller 

Color: Red

GrimmSpeed introduces the most refined Manual Boost Controller available on the market. 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.

Innovation is the standard here at GrimmSpeed and we have continued to push the envelope with this product as well. We have created a MBC that only requires one spring for both high and low boost settings! No more changing out springs! Our spring offers very fine adjustability...we have achieved this by creating an extra long spring and large adjustment range with a very fine threaded adjuster. The spring will outlast the car as it is made from Stainless Steel. Unlike the competition who uses heavy steel balls, we have used an UltraLight Ceramic Ball that will react much quicker.

The Bleed Port isdesigned to precisely and quickly bleed off wastegate pressureso the wastegate closes quickly while not being large enough to affect mass air flow readings during high boost. It is also designed to further dampen boost spikes. Boost ranges from wastegate pressure to over 35PSI are obtainable if needed yet it still offers fine enough adjustment to only raise the boost in very small increments.

Works with any turbo application including Subaru, Mitsubishi, Hyundai, MazdaSpeed, and many more.

Install Guide:


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Additional Information

Manufacturer Grimmspeed
Warranty Manufacturer
Color Red
Adjustable Yes
Installation Hardware Included Yes
Material Aluminum

Disclaimer provides fitment information provided to us by the manufacturer.  However, please make sure the product you are purchasing will fit your year, make, & model Subaru.  For example, one product may fit only a 2002-2004 WRX, but also fits a 2005-2007 STI.  This same product may not fit a 2005-2007 WRX.  Either way, the product will list the fitment years as follows: 2002, 2003, 2004, 2005, 2006, 2007.   So please be sure the product will fit your specific application.  The majority of the products listed on our site will have the year, make, & model fitment information directly in the product title. will not be held liable for purchases made for the incorrect application, and a restocking fee may be required.  If you have any questions, PLEASE contact us before making your purchase.  Our knowledgeable staff will be happy to assist you!  

Grimmspeed Manual Boost Controller Red

SKU: 070002R

Grimmspeed Manual Boost Controller

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