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.

Product wishlist
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
Out of stock
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
$989.00
Meticulous Engineering Meets Unparalleled Craftsmanship. You probably already know that you want an intercooler with maximum cooling and...
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
Out of stock
The bar has been raised. So, you probably already know that you want an intercooler with maximum cooling...
GrimmSpeed Hood Struts For 2002-2007 WRX/STI
GrimmSpeed Hood Struts For 2002-2007 WRX/STI
Out of stock
High-Lift Hood Struts. There is no substitute.  Tired of that ugly OEM hood prop blocking your view of...
GrimmSpeed Radiator Shroud w/ Tool Tray For 2008-2014 Subaru WRX/STI
GrimmSpeed Radiator Shroud w/ Tool Tray For 2008-2014 Subaru WRX/STI
$65.00
3 PROBLEMS. 1 SOLUTION. How many times have you lost a wrench or socket in your engine bay?...
GrimmSpeed Boost Control Solenoid for 2004-2007 STI / 2006-2007 WRX / 2004-2008 Forester XT
GrimmSpeed Boost Control Solenoid for 2004-2007 STI / 2006-2007 WRX / 2004-2008 Forester XT
Out of stock
The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost...
GrimmSpeed Front Mount Intercooler Kit 2015+ Subaru WRX
GrimmSpeed Front Mount Intercooler Kit 2015+ Subaru WRX
Out of stock
This is the GrimmSpeed Front Mount Intercooler Kit. This is the latest offering from GrimmSpeed and has been...
Grimmspeed Exhaust Gasket Kit For EJ Turbocharged Subaru
Grimmspeed Exhaust Gasket Kit For EJ Turbocharged Subaru
Out of stock
Package Contents: (2) Engine to Exhaust Manifold Gaskets - 020001 (2) Exhaust Manifold to Cross Pipe Gaskets -...
GrimmSpeed Red Pulley Cover For 2015+ WRX
GrimmSpeed Red Pulley Cover For 2015+ WRX
$89.00
Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that...
GrimmSpeed Black Pulley Cover For 2015+ WRX
GrimmSpeed Black Pulley Cover For 2015+ WRX
Out of stock
Tired of being teased for your boring engine bay? Replace your stock TMIC with one that doesn't facilitate...
Grimmspeed Red Radiator Shroud for 2015+ WRX/STI
Grimmspeed Red Radiator Shroud for 2015+ WRX/STI
$89.00
Spruce up your engine bay and make it stand out! At GrimmSpeed we pride ourselves in the design...
GrimmSpeed Boost Control Solenoid For Mitsubishi Evolution 8/9
GrimmSpeed Boost Control Solenoid For Mitsubishi Evolution 8/9
Out of stock
The Most COMPLETE EVO BCS Ever Built, Period. The GrimmSpeed™ Mitsubishi EVO Boost Control Solenoid is designed to work with...
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 STI
Out of stock
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
GrimmSpeed Top Mount Intercooler Kit For 2008-2014 Subaru WRX
$989.00
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
GrimmSpeed Black Thermal Coating Top Mount Intercooler For 2002-2007 Subaru WRX / 2004+ STI / 2004-2007 FXT
Out of stock
GrimmSpeed Hood Struts For 2002-2007 WRX/STI
GrimmSpeed Hood Struts For 2002-2007 WRX/STI
Out of stock
GrimmSpeed Radiator Shroud w/ Tool Tray For 2008-2014 Subaru WRX/STI
GrimmSpeed Radiator Shroud w/ Tool Tray For 2008-2014 Subaru WRX/STI
$65.00
GrimmSpeed Boost Control Solenoid for 2004-2007 STI / 2006-2007 WRX / 2004-2008 Forester XT
GrimmSpeed Boost Control Solenoid for 2004-2007 STI / 2006-2007 WRX / 2004-2008 Forester XT
Out of stock
GrimmSpeed Front Mount Intercooler Kit 2015+ Subaru WRX
GrimmSpeed Front Mount Intercooler Kit 2015+ Subaru WRX
Out of stock
Grimmspeed Exhaust Gasket Kit For EJ Turbocharged Subaru
Grimmspeed Exhaust Gasket Kit For EJ Turbocharged Subaru
Out of stock
GrimmSpeed Red Pulley Cover For 2015+ WRX
GrimmSpeed Red Pulley Cover For 2015+ WRX
$89.00
GrimmSpeed Black Pulley Cover For 2015+ WRX
GrimmSpeed Black Pulley Cover For 2015+ WRX
Out of stock
Grimmspeed Red Radiator Shroud for 2015+ WRX/STI
Grimmspeed Red Radiator Shroud for 2015+ WRX/STI
$89.00
GrimmSpeed Boost Control Solenoid For Mitsubishi Evolution 8/9
GrimmSpeed Boost Control Solenoid For Mitsubishi Evolution 8/9
Out of stock
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