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 Unresonated Catback Exhaust System For 2011+ WRX/STI Sedan
Grimmspeed Unresonated Catback Exhaust System For 2011+ WRX/STI Sedan
$1,419.00
With so many catback options available, our goal was to create a unique, refined sound in an extremely...
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GrimmSpeed Stage 1 Power Package For 2005-2009 Subaru Legacy GT
GrimmSpeed Stage 1 Power Package For 2005-2009 Subaru Legacy GT
$450.00$449.00
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and...
GrimmSpeed Stage 1 Power Package For 2008-2014 STI
GrimmSpeed Stage 1 Power Package For 2008-2014 STI
$449.00
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and...
GrimmSpeed Stage 1 Power Package For 2008-2014 WRX
GrimmSpeed Stage 1 Power Package For 2008-2014 WRX
$449.00
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and...
GrimmSpeed Stage 1 Power Package For 2015+ WRX
GrimmSpeed Stage 1 Power Package For 2015+ WRX
$539.00
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and...
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
$63.00
Do you know what your intake manifold sits on?...a superheated boxer engine. If you don't know already, the...
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
$415.00
** INSTALLATION NOTE - Take care to install the air filter onto the intake tube properly. Push the...
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
$375.00
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
$94.00
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
$147.00
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
$247.00
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
$247.00
OEM Splitter choking your TMIC? Fix that. Tired of popping your hood only to have that ugly OEM...
Grimmspeed Unresonated Catback Exhaust System For 2011+ WRX/STI Sedan
Grimmspeed Unresonated Catback Exhaust System For 2011+ WRX/STI Sedan
$1,419.00
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GrimmSpeed Stage 1 Power Package For 2005-2009 Subaru Legacy GT
GrimmSpeed Stage 1 Power Package For 2005-2009 Subaru Legacy GT
$450.00$449.00
GrimmSpeed Stage 1 Power Package For 2008-2014 STI
GrimmSpeed Stage 1 Power Package For 2008-2014 STI
$449.00
GrimmSpeed Stage 1 Power Package For 2008-2014 WRX
GrimmSpeed Stage 1 Power Package For 2008-2014 WRX
$449.00
GrimmSpeed Stage 1 Power Package For 2015+ WRX
GrimmSpeed Stage 1 Power Package For 2015+ WRX
$539.00
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
GrimmSpeed 8mm Phenolic Thermal Spacer for Subaru
$63.00
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
GrimmSpeed Red Stealthbox Air Intake For 2015+ Subaru WRX
$415.00
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
GrimmSpeed Red Cold Air Intake For 2013+ BRZ/FR-S/86
$375.00
GrimmSpeed Pully Cover w/ Tool Tray For 2013+ BRZ/FR-S/86
GrimmSpeed Pully Cover w/ Tool Tray For 2013+ BRZ/FR-S/86
$94.00
GrimmSpeed Strut Tower Brace For 2013+ BRZ/FR-S/86
GrimmSpeed Strut Tower Brace For 2013+ BRZ/FR-S/86
$147.00
GrimmSpeed Top Mount Intercooler Splitter For 2008-2014 STI
GrimmSpeed Top Mount Intercooler Splitter For 2008-2014 STI
$247.00
GrimmSpeed Top Mount Intercooler Splitter For 2006-2007 WRX/STI
GrimmSpeed Top Mount Intercooler Splitter For 2006-2007 WRX/STI
$247.00
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