GrimmSpeed

 Justin Grimm developed a passion for Subaru vehicles in 2002. He enjoyed taking them apart and improving their performance. After a few years of enjoying his passion for Subarus, he decided to make a career out of it. After realizing the niche market for aftermarket performance products, he founded GrimmSpeed out of his garage. He then later opened up his shop in St. Paul, MN where today the company produces innovative products for other nationwide Subaru enthusiasts.

Tired of being teased for your boring engine bay? Replace your stock TMIC with one that doesn't facilitate...
Spruce up your engine bay and make it stand out! At GrimmSpeed we pride ourselves in the design...
The Most COMPLETE EVO BCS Ever Built, Period. The GrimmSpeed™ Mitsubishi EVO Boost Control Solenoid is designed to work with...
The Perfect Upgrade For The Weight Conscious Enthusiast. GrimmSpeed has always been on the forefront of innovation when...
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting...
Keep Heat Soak to a Minimum with our Heat Shield! Enhanced Turbo/Downpipe Coverage(Keeps radiant heat out of engine...
Real 10whp gains in 30 min with no tuning. Design requirements for this intake were simple: The intake...
Meticulous engineering meets elegant design. For years you've been asking us for intakes, and for years we've silently...
ENGINEERED TO PERFECTION.Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover...
ENGINEERED TO PERFECTION. Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator...
Meticulous Engineering, Unparalleled Craftsmanship Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring...
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM...
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