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- All Motor Builds
- Anodized Bolt Kits
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- Gaskets
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- Head Gaskets
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- Lubricants/Sealant/Grease
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- PCV Hoses
- Pistons & Rings
- Pulleys
- Running In Oil
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- STI
- Tools
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- ACL
- ACS-Australian Clutch Services
- ACT-Australian Clutch Technology
- Alcon
- APR Performance
- ARP
- Autometer
- ABW Motorsport
- Armorall
- Autoglym
- AVO
- Bendix
- Blouch
- Bosch
- Bowdens Own
- Boxer Performance Parts
- Brembo
- Bremtec
- Carillo
- Clutch Pro
- Cobb
- Cosworth
- CRC
- Cusco
- Dayco
- DBA
- Dixcel
- DTM Racing
- Ecliptech
- Endless
- Exedy
- G Loc
- Genuine Subaru
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- Goodridge
- Greddy
- Grimmspeed
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- Hardrace
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- MCA
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- Narva
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- NRG Innovations
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- Process West
- Project Kics
- Project Mu
- PSR
- PWR
- Race Works
- Rain-X
- Radium
- Rally Armor
- RCM Roger Clark Motorsport
- Redline
- Rota Wheels
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- Sakura
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9 products




Grimmspeed Hood Struts BRZ/86
Regular price $239.95 Save $-239.95Tired of that ugly OEM hood prop blocking your view of that beautiful boxer engine? Always wanted to open your hood with just a couple fingers? Annoyed that the hood prop is always in your way while you’re working in your engine bay? GrimmSpeed to the rescue. With meticulous design and quality materials, this kit delivers in a big way. We hate to use the "P" word, but designing this kit to be perfectly balanced was a requirement. Lift the hood halfway and you'll find a generous neutral zone. Leave your hood here for a sleek look at that local car show. Alternatively, a flick of the wrist is all that's required to coax your hood into its fully opened position. To close, simply hold the hood below its neutral zone and let go. No need to risk scratches or deformation by pushing your hood closed.
Design
We began by mapping the hood and engine bay for a number of test vehicles in 3D CAD. From there, a lifting linkage was designed, analyzed, prototyped and tested. Our in-house 3D printer facilitated a fast, efficient design cycle and we were able to move into production using some of the worlds most advanced CNC machining equipment. What that means for you is a system that will fit and operate correctly, every single time, for years to come. The fender ball studs were also designed specifically for the application, to adapt our high-quality, American Made struts to the metric threads found on your Subaru. What about those struts, you ask? They're beefy. Custom built to our exacting specifications, these struts feature a large diameter body that provides excellent opening force without sacrificing smoothness and control.
Materials
With the use and exposure that a hood strut kit will see on a regular basis, material selection and finishing options are critically important. All brackets are machined from locally sourced 6061 Aluminum. After an initial quality inspection, each part is anodized with a sleek, black finish. The threaded ball studs are machined from Stainless Steel to ensure that no potentially corrosive material is being introduced to your vehicles chassis. The next key component is the struts themselves. More specifically, these are referred to as gas springs. Manufactured in the USA, these are of the highest quality and are used by OEMs around the world. Last, but certainly not least, is the included hardware. All hardware is grade 8.8 or higher and black zinc coated for longevity.
Specifications
- Opens Hood 35% Higher Than OEM
- Better access and light for workingPerfect Hood Balance
- Struts are balanced for all GD chassis hoods
- Eliminates OEM Hood Prop
- No risk of hood falling, more access when wrenchingCNC Machined Brackets
- Machined for a perfect fitPremium Quality Struts
- Larger strut body for smoother operation, made in the USA!
- Durable Hard Anodized Finish
- Protects brackets from corrosion with an OEM finishFARO Arm Designed
- Â Allows more precise design and a stronger, better fitting product

Grimmspeed Hood Struts 01-07 WRX & STI
Regular price $279.95 Save $-279.95Tired of that ugly OEM hood prop blocking your view of that beautiful boxer engine? Always wanted to open your hood with just a couple fingers? Annoyed that the hood prop is always in your way while you’re working in your engine bay? GrimmSpeed to the rescue. With meticulous design and quality materials, this kit delivers in a big way. We hate to use the "P" word, but designing this kit to be perfectly balanced was a requirement. Lift the hood halfway and you'll find a generous neutral zone. Leave your hood here for a sleek look at that local car show. Alternatively, a flick of the wrist is all that's required to coax your hood into its fully opened position. To close, simply hold the hood below its neutral zone and let go. No need to risk scratches or deformation by pushing your hood closed.
Design
We began by mapping the hood and engine bay for a number of test vehicles in 3D CAD. From there, a lifting linkage was designed, analyzed, prototyped and tested. Our in-house 3D printer facilitated a fast, efficient design cycle and we were able to move into production using some of the worlds most advanced CNC machining equipment. What that means for you is a system that will fit and operate correctly, every single time, for years to come. The fender ball studs were also designed specifically for the application, to adapt our high-quality, American Made struts to the metric threads found on your Subaru. What about those struts, you ask? They're beefy. Custom built to our exacting specifications, these struts feature a large diameter body that provides excellent opening force without sacrificing smoothness and control.
Materials
With the use and exposure that a hood strut kit will see on a regular basis, material selection and finishing options are critically important. All brackets are machined from locally sourced 6061 Aluminum. After an initial quality inspection, each part is anodized with a sleek, black finish. The threaded ball studs are machined from Stainless Steel to ensure that no potentially corrosive material is being introduced to your vehicles chassis. The next key component is the struts themselves. More specifically, these are referred to as gas springs. Manufactured in the USA, these are of the highest quality and are used by OEMs around the world. These custom valved units (to perfectly match the weight of the WRX and STI hoods) are paired with black zinc hardware and a quick-release ball and socket. Last, but certainly not least, is the included hardware. All hardware is grade 8.8 or higher and black zinc coated for longevity.
Specifications
- Opens Hood 35% Higher Than OEM
- Better access and light for workingPerfect Hood Balance
- Struts are balanced for all GD chassis hoods
- Eliminates OEM Hood Prop
- No risk of hood falling, more access when wrenchingCNC Machined Brackets
- Machined for a perfect fitPremium Quality Struts
- Larger strut body for smoother operation, made in the USA!
- Durable Hard Anodized Finish
- Protects brackets from corrosion with an OEM finishFARO Arm Designed
- Â Allows more precise design and a stronger, better fitting product




Grimmspeed Phenolic Thermal Manifold Spacer 8mm
Regular price $119.00 Save $-119.00
What it does:
Greatly reduces the transer of heat from engine to intake manifold thus reducing heat soak.One of a kind true Phenolic material, not cutting board material like others.The cooler your intake temperature is the denser the air is which leads to more powerFor every 5 degree reduction in air temperature, increases power by 1%.The cooler and denser the intake air that the engine sucks in, increases the amount of air that can be mixed with fuel thus increasing efficiency.
How it works:
The intake air in your engine travels through the airbox into the turbo, then into the aluminum intake manifold. The air exits the intake manifold and goes directly into the engine.
While the intake air is within the intake manifold it picks up alot of heat from the aluminum intake manifold. This added heat reduces air density thus reducing engine power capabilities.In stock form your engine has a steel gasket between the intake manifold and engine which allows the heat from the engine to quickly transfer into the intake manifold. By replacing this steel gasket with the GrimmSpeedâ„¢ Phenolic Spacer you are greatly reducing the transfer of engine heat into the intake manifold.Phenolic Spacers are able to withstand 500+ degrees F. Subaru engines run at the hotter end of operation around 200 degrees F, so the Phenolic Spacer is well within its max running temperature. GrimmSpeedâ„¢ has tested that it is also safe to run race fuel, E85, and methanol with the Phenolic Spacers.The Phenolic Spacer will conduct 300-900 times less heat than the oem steel gasket.

Grimmspeed Phenolic Thermal Manifold Spacer 3mm
Regular price $119.00 Save $-119.00
What it does:
Greatly reduces the transer of heat from engine to intake manifold thus reducing heat soak.One of a kind true Phenolic material, not cutting board material like others.The cooler your intake temperature is the denser the air is which leads to more powerFor every 5 degree reduction in air temperature, increases power by 1%.The cooler and denser the intake air that the engine sucks in, increases the amount of air that can be mixed with fuel thus increasing efficiency.
How it works:
The intake air in your engine travels through the airbox into the turbo, then into the aluminum intake manifold. The air exits the intake manifold and goes directly into the engine.
While the intake air is within the intake manifold it picks up alot of heat from the aluminum intake manifold. This added heat reduces air density thus reducing engine power capabilities.In stock form your engine has a steel gasket between the intake manifold and engine which allows the heat from the engine to quickly transfer into the intake manifold. By replacing this steel gasket with the GrimmSpeedâ„¢ Phenolic Spacer you are greatly reducing the transfer of engine heat into the intake manifold.Phenolic Spacers are able to withstand 500+ degrees F. Subaru engines run at the hotter end of operation around 200 degrees F, so the Phenolic Spacer is well within its max running temperature. GrimmSpeedâ„¢ has tested that it is also safe to run race fuel, E85, and methanol with the Phenolic Spacers.The Phenolic Spacer will conduct 300-900 times less heat than the oem steel gasket.








Grimmspeed Manual Boost Controller
Regular price $209.95 Save $-209.95Product Description
Superior Range with Ultra-Fine Resolution!
Welcome to the next evolution of boost control, The GrimmSpeed Manual Boost Controller. Introducing the most refined Manual Boost Controller available on the market. We spent over a year working hand in hand with tuners across the country to devolop our MBC. Our Manual Boost Controller allows you to raise the OEM boost levels in a quick and efficient manner. Adding the MBC will result in Quicker Spool Up, Quicker Response, Increased Horsepower, and Increased Torque.
- Over 250 Way Adjustable
- Heavy Duty SST Dual Ball Detent System (Clicks with each turn for active feedback)
- Laser Etched Scale and Labels (Easy to read and repeat precise adjustments)
- Extra Long Travel Spring (ONE spring, no need to switch Springs)
- Superior Range without Sacrificing Resolution (0-60 PSI Capabilities with Ultra-Fine adjustments)
- Universal Mounting Solution (Incredibly Durable and Ergonomic
This is the first of its kind with Exact Control technology utilizing over 250 adjustment points that lock in place using a heavy duty stainless dual ball detent system. An extra long travel spring gives you superior range unmatched by any other manual boost controller while maintaining a high resolution, not some vague guess at where to set your boost. Don't trust the life of your engine to trial and error, rather pinpoint your setting using our rising scale running the length of the controller, lock and load. CNC’d from weapon’s grade 6061 Aluminum and laser etched our MBC will outlast your vehicle! The GrimmSpeed Manual Boost Controller redefines precise control and will promise you the results you demand.
Will work with any OEM or Aftermarket turbo application.
*We recommend a professional dyno tune with use of aftermarket boost adjustment items*










Grimmspeed 3 Port Boost Solenoid 08-20 STI
Regular price $198.95 Save $-198.95Tuning Notes:
Because this upgraded solenoid affects the way that your vehicle controls boost, it is always recommended that you consult with a tuner immediately following installation. It is not recommended that you drive the car in a way that builds boost without doing so. If you have any questions, don't hesitate to get in touch with us directly!
Suits:
- 08-20 STI