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- Christmas Picks
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- All Engine
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- All Motor Builds
- Anodized Bolt Kits
- Con Rod Bearings
- Con Rods
- Crankshaft
- Delete/Relocation Kits
- Drive Belts/Timing Belts
- Engine Accessories
- Gaskets
- Head Bolts/Studs
- Head Gaskets
- Hoses & Fittings
- Lubricants/Sealant/Grease
- Main Bearings
- PCV Hoses
- Pistons & Rings
- Pulleys
- Running In Oil
- Short Blocks
- Timing Belt Kits
- TGV Delete Kits
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- Superchargers
- Turbo/Turbo Kits
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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
- GFB
- Goodridge
- Greddy
- Grimmspeed
- H&R
- Hankook
- Hardrace
- Hella
- Hot Wheels
- HKS
- IAG
- Invidia
- K&N
- Killer B
- King Springs
- Kitten
- Koyorad
- Loctite
- Lucas
- Magnafuel
- Manley
- MCA
- Meguiars
- Mishimoto
- Motul
- MRT
- Narva
- NGK
- NRG Innovations
- OS Giken
- Penrite
- Permatex
- Pierburg
- PPG Performance Gearboxes
- Process West
- Project Kics
- Project Mu
- PSR
- PWR
- Race Works
- Rain-X
- Radium
- Rally Armor
- RCM Roger Clark Motorsport
- Redline
- Rota Wheels
- Ryco
- Sakura
- Silvers Suspension
- Siruda
- Sparco
- STI
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3 products
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 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