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GrimmSpeed Alternator Cover - Subaru WRX 2002-2014 / STi 2004-2020 (+Multiple Fitments)

$89.00
099012
All Alternator Covers Belt Covers Best selling products Commerceinstruments Best Selling Products Engine Covers Grimmspeed New products
Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what you need....

GrimmSpeed Master Cylinder Brace - Subaru WRX / STi 2008-2014 (+Multiple Subaru Fitments)

$99.00
091029
All Best selling products Brake Accessories Brake System Brakes Commerceinstruments Best Selling Products Grimmspeed Master Cylinder Braces New products
Pressing Subaru brakes leaves a lot to be desired, especially when every inch counts in a race or when you are depending on them...

GrimmSpeed Air Oil Separator - Subaru WRX 2002-2007 / STi 2004-2020

$299.00
078006
Air Oil Separators All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products Oil System
An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake...

GrimmSpeed Phenolic Spacer Upper Intake Manifold - Hyundai Genesis Coupe 3.8 2013

$69.00
071003
All Best selling products Commerceinstruments Best Selling Products Engine Build Components Engine Gaskets Gaskets & Miscellaneous Grimmspeed New products
Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more...

GrimmSpeed Phenolic Thermal Spacers 8mm - Subaru WRX 2002-2014 / STi 2004-2014 / Legacy GT 2005-2012 / Forester XT 2004-2013

$60.00
019001
All Best selling products Commerceinstruments Best Selling Products Gaskets & Miscellaneous Grimmspeed New products
Do you know what your intake manifold sits on?...a superheated engine. If you don't know already, the cooler your intake air is the more...

GrimmSpeed Turbo to Downpipe Gasket - Subaru WRX 2015-2020

$29.00
020033
All Best selling products Commerceinstruments Best Selling Products Exhausts Grimmspeed New products
This is the Grimmspeed Turbo to Downpipe Gasket. Exhaust gaskets whether they be on the turbocharger or anywhere on the exhaust manifold see more...

GrimmSpeed Shift Knob (Stainless Steel) - Subaru 5 Speed & 6 Speed Models

$59.00
038006
All Best selling products Commerceinstruments Best Selling Products Grimmspeed Interior Accessories New products Shift Knobs Shifters & Bushings
Each knob is machined from solid 304 stainless steel rod or delrin in Minnesota and weighs in at 675g. Each shift knob also receives...

GrimmSpeed Top Mount Intercooler Blow-Off Valve Gasket - Subaru WRX 2002-2007 / STi 2004-2021

$13.00
020023
All Best selling products Commerceinstruments Best Selling Products Engine Build Components Engine Gaskets Flanges & V-Band Gaskets & Miscellaneous Grimmspeed New products
The OEM Subaru Top Mount Intercooler Gaskets are pretty weak, and will eventually give out. But fear not, GrimmSpeed has answered your call. Their...

GrimmSpeed Subaru 3" Downpipe to OEM Catback Adapter - Multiple Subaru Models

$57.00
077044
All Best selling products Commerceinstruments Best Selling Products Exhaust Accessories Exhausts Grimmspeed New products
Exhaust leaks seem to be an all-too-common issue with most modified Subarus. They tend to spring up out of nowhere and cause hours of...

GrimmSpeed Cherry Blossom Red(STi Pink) Paint

$20.00
054003
All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products Paint & Glass Cleaner Vehicle Care Vehicle Protection
GrimmSpeed Cherry Blossom Paint  *Pictures used for marketing purposes only, actual product may vary

GrimmSpeed Adjustable Wastegate (IWG) Bracket - Universal

$39.00
010019
All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products Wastegates & Accessories
No More Welding Turbos! Fully Adjustable Rod Design For Most Subaru OEM/Aftermarket Turbos! Stainless Steel Construction Laser Engraved GrimmSpeed Logo Simple and Attractive Allen...

GrimmSpeed License Plate Frames - GrimmSpeed Text (Pr)

$9.00
111002
All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products
Hey, GET SEEN! Check out our new license plate frames with raised white lettering. It is impossible to be any more "GrimmSpeed" when you...

GrimmSpeed License Plate Relocation Kit - Subaru WRX & STi 2008-2014 / Legacy GT 2005-2009

$79.00
094011
All Best selling products Commerceinstruments Best Selling Products Grimmspeed License Plate Relocation Kits New products
Improve style and Increase Flow! Most adjustability available on the market! Mounts in OEM tow hook location (No cutting or drilling required) Simple stainless steel...

GrimmSpeed Cold Air Intake - Subaru WRX & STi 2008-2014 / Forester XT 2009-2013

$349.00
060051
Air Induction All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products
Grimmspeed's Design requirements for this intake were simple: The intake must not only be safe for the engine, but perform well both with and...

GrimmSpeed Strut Tower Brace - Subaru BRZ 2013-2020 / Scion FR-S 2013-2016

$140.00
098009
All Best selling products Chassis Bracing Commerceinstruments Best Selling Products Drivetrain Grimmspeed New products Strut Bars / Braces Suspension Linkage
You’ve probably read somewhere on the internet that a strut tower brace never does anything but look pretty. You’re about to read otherwise. Armed...

GrimmSpeed Hood Struts - Subaru BRZ 2013-2020 / Scion FR-S 2013-2016 / Toyota 86 2017-2020

$139.00
097001
All Best selling products Commerceinstruments Best Selling Products Grimmspeed Hood Struts New products
Tired of that ugly OEM hood prop blocking your view of that beautiful FA20 boxer engine? Always wanted to open your feather-light hood with...

GrimmSpeed Top Mount Intercooler Aluminum Y-Pipe Kit - Subaru WRX 2002-2007 / STi 2004-2021 / Forester XT 2004-2008

$169.00
090096
All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products
Just bought an aftermarket or STI TMIC that requires an STI Y-Pipe to fit? Want to replace your chewed up and leaking couplers? Maybe...

GrimmSpeed Top Mount Intercooler Turbo Outlet Hose - Subaru WRX 2008-2014 / Legacy GT 2005-2009

$105.00
090060
All Best selling products Commerceinstruments Best Selling Products Cooling Grimmspeed Intercooler Piping Kits New products
Constructed using a 5-ply process and high quality silicone material, this coupler will enable you to utilize a stock location, STi or aftermarket turbo on...

GrimmSpeed 3 Port Electronic Boost Control Solenoid - Subaru WRX 2002-2005

$129.00
057001
All Best selling products Boost Control Solenoids Commerceinstruments Best Selling Products Electronics Forced Induction Grimmspeed New products
The GrimmSpeed Electronic Boost Control Solenoid is designed to work with your factory computer (requires tuning). It will not reduce the life of your...

GrimmSpeed Air Oil Separator - Subaru WRX 2008-2014 / Legacy GT 2005-2009

$299.00
078016
Air Oil Separators All Best selling products Commerceinstruments Best Selling Products Grimmspeed New products Oil System
An Air/Oil Separator has one job, remove the oil from the engine ventilation system so the oil does not get sent through the intake...

GrimmSpeed Manual Boost Controller - Universal

$109.00
070002
All Best selling products Commerceinstruments Best Selling Products Electronics Forced Induction Grimmspeed Manual Boost Controllers New products
Welcome to the next evolution of boost control, The GrimmSpeed Manual Boost Controller. Introducing the most refined Manual Boost Controller available on the market....

Grimmspeed Front Mount Intercooler Kit - Subaru WRX 2008-2014

$1,559.00
090230
All Best selling products Commerceinstruments Best Selling Products Cooling Grimmspeed Intercoolers New products
Meticulous Engineering, Unparalleled Craftsmanship GrimmSpeed Intercoolers have set the gold standard for how a high performance heat exchanger should be crafted. Our intercoolers have always...

Grimmspeed Stage 1 Power Package - Subaru STi 2015-2021

$475.00
191013
All Best selling products Commerceinstruments Best Selling Products Electronics Engine Management Grimmspeed New products Power Packages
The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together, as...

GrimmSpeed Radiator Hose Kit - Subaru Forester XT 2004-2008

$95.00
405323
All Best selling products Commerceinstruments Best Selling Products Cooling Grimmspeed New products Radiator Accessories Radiator Hoses
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As your Subaru ages...

GrimmSpeed Radiator Hose Kit - Subaru WRX 2015-2020 / Forester XT 2014-2019

$110.00
405324
All Best selling products Commerceinstruments Best Selling Products Cooling Grimmspeed New products Radiator Accessories Radiator Hoses
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As your Subaru ages...

Grimmspeed Gunmetal Lightweight Crank Pulley - Subaru WRX 2015-2020 / BRZ 2013-2020 / FR-S 2013-2016

$135.00
095025
All Belts & Pulleys Best selling products Commerceinstruments Best Selling Products Engine Build Components Grimmspeed New products
Your FR-S factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does this...

Grimmspeed Top Mount Intercooler Splitter - Subaru STI 2015-2021

$235.00
093128
All Best selling products Commerceinstruments Best Selling Products Cooling Grimmspeed Intercooler Accessories & Hoses Intercooler Shrouds New products
These have both been a long time in the making and as the popularity of GrimmSpeed intercooler offerings has skyrocketed, we've had a massive...

GrimmSpeed Radiator Hose Kit - Subaru Impreza 2002-2005 / WRX 2002-2007 / STI 2004-2007

$110.00
405325
All Best selling products Commerceinstruments Best Selling Products Cooling Grimmspeed New products Radiator Accessories Radiator Hoses
Your Subaru’s cooling system is only as good as its weakest link, commonly that’s the old, dry-rotted OEM coolant hoses. As your Subaru ages...

GrimmSpeed Master Cylinder Brace - Mitsubishi Evo 8 / 9 2003-2006

$99.00
091019
All Best selling products Brake Accessories Brake System Brakes Commerceinstruments Best Selling Products Grimmspeed Master Cylinder Braces New products
Improve pedal feel and braking capabilities! Most Bracket Mounting Points Available!(4 strut tower mounting points) Fits EVO 8/9 Indestructible 12L14 CNC Laser cut construction and...

GrimmSpeed Throttle Body Gasket - Mitsubishi Evolution 8/9 2003-2006

$16.00
020008
All Best selling products Commerceinstruments Best Selling Products Engine Build Components Engine Gaskets Gaskets & Miscellaneous Grimmspeed New products
GrimmSpeed EVO 8/9 Throttle Body GasketNow supporting the Evo community with the same top quality gaskets we have been offering Subaru owners for years! Introducing...
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All products sold by Patterson Performance Parts, LLC are intended for off-road and/or competition use only. By purchasing aftermarket products from us, having us install the products, or both, the customer takes full responsibility for any use, and/or misuse of the product; and agrees that Patterson Performance Parts holds no responsibility for any consequences, legal, or other, of such use and/or misuse.
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