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 License Plate Relocation Kit For 2011+ Nissan GT-R
GrimmSpeed License Plate Relocation Kit For 2011+ Nissan GT-R
Out of stock
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location(No cutting...
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
Out of stock
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the...
GrimmSpeed Exhaust Manifold Crosspipe For 2006-2007 WRX / 2004-2008 FXT
GrimmSpeed Exhaust Manifold Crosspipe For 2006-2007 WRX / 2004-2008 FXT
Out of stock
1/2"+ Thick Flanges, 14 Gauge Tubing, TRIPLE Layer Flex Joint. We are DURABILITY. Up until now all of you...
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
$399.00
** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the...
GrimmSpeed Black Cold Air Intake For 2005-2009 Legacy GT / Outback XT
GrimmSpeed Black Cold Air Intake For 2005-2009 Legacy GT / Outback XT
Out of stock
Meticulous engineering meets elegant design. For years you've been asking us for intakes, and for years we've silently...
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
$359.00
Real 10whp gains in 30min with no tuning. Design requirements for this intake were simple: The intake must...
GrimmSpeed Pully Cover w/ Tool Tray For 2013+ BRZ/FR-S/86
GrimmSpeed Pully Cover w/ Tool Tray For 2013+ BRZ/FR-S/86
$89.00
ENGINEERED TO PERFECTION. Booya! Add a bit of style and function to your engine bay with this simple...
GrimmSpeed Strut Tower Brace For 2013+ BRZ/FR-S/86
GrimmSpeed Strut Tower Brace For 2013+ BRZ/FR-S/86
$140.00
Sharpen your handling and reduce NVH. You’ve probably read somewhere on the internet that a strut tower brace...
GrimmSpeed Top Mount Intercooler Splitter For 2008-2014 STI
GrimmSpeed Top Mount Intercooler Splitter For 2008-2014 STI
$229.00
OEM Splitter choking your TMIC? We can fix that. These have both been a long time in the...
GrimmSpeed Top Mount Intercooler Splitter For 2006-2007 WRX/STI
GrimmSpeed Top Mount Intercooler Splitter For 2006-2007 WRX/STI
$229.00
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 WRX
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 WRX
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 Splitter For 2002-2003 WRX (JDM STI Hood Scoop)
GrimmSpeed Top Mount Intercooler Splitter For 2002-2003 WRX (JDM STI Hood Scoop)
$229.00
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
GrimmSpeed License Plate Relocation Kit For 2011+ Nissan GT-R
GrimmSpeed License Plate Relocation Kit For 2011+ Nissan GT-R
Out of stock
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
Out of stock
GrimmSpeed Exhaust Manifold Crosspipe For 2006-2007 WRX / 2004-2008 FXT
GrimmSpeed Exhaust Manifold Crosspipe For 2006-2007 WRX / 2004-2008 FXT
Out of stock
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
$399.00
GrimmSpeed Black Cold Air Intake For 2005-2009 Legacy GT / Outback XT
GrimmSpeed Black Cold Air Intake For 2005-2009 Legacy GT / Outback XT
Out of stock
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
$359.00
GrimmSpeed Pully Cover w/ Tool Tray For 2013+ BRZ/FR-S/86
GrimmSpeed Pully Cover w/ Tool Tray For 2013+ BRZ/FR-S/86
$89.00
GrimmSpeed Strut Tower Brace For 2013+ BRZ/FR-S/86
GrimmSpeed Strut Tower Brace For 2013+ BRZ/FR-S/86
$140.00
GrimmSpeed Top Mount Intercooler Splitter For 2008-2014 STI
GrimmSpeed Top Mount Intercooler Splitter For 2008-2014 STI
$229.00
GrimmSpeed Top Mount Intercooler Splitter For 2006-2007 WRX/STI
GrimmSpeed Top Mount Intercooler Splitter For 2006-2007 WRX/STI
$229.00
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 WRX
GrimmSpeed Hood Scoop TMIC Splitter For 2004-2005 WRX
Out of stock
GrimmSpeed Top Mount Intercooler Splitter For 2002-2003 WRX (JDM STI Hood Scoop)
GrimmSpeed Top Mount Intercooler Splitter For 2002-2003 WRX (JDM STI Hood Scoop)
$229.00
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