Products

Many states don't require a front license plate, which leaves a lot of Subarus with ugly holes in the front bumper. GrimmSpeed license plate delete...

Many states don't require a front license plate, which leaves a lot of Subarus with ugly holes in the front bumper. GrimmSpeed license plate delete...

Many states don't require a front license plate, which leaves a lot of Subarus with ugly holes in the front bumper. GrimmSpeed license plate delete...

 We all know how bad the OEM Subaru Top Mount Intercooler Gaskets are. They are the greatest source of leaks in the entire intake stream. Fear not,...

GrimmSpeed knows that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We've...

Grimmspeed Throttle Body Drive By Cable Gasket

GrimmSpeed offers an enlarged variation of the standard size OEM gasket. Why do you want the enlarged bore style vs. OEM style? The OEM gasket hol...

GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price.  At GrimmSpeed™ we have worked with endless amounts of aftermarket gaskets, n...

GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed™ we have worked with endless amounts of aftermarket gaskets, no...

When it comes to wiring the Hella Horns that are mounted to your beautiful GrimmSpeed BroTie Bracket, they made a pre-assembled, OEM-quality harnes...

When it comes to wiring the Hella Horns that are mounted to your beautiful GrimmSpeed BroTie Bracket, they made a pre-assembled, OEM-quality harnes...

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 just a ...

The GrimmSpeed line of splitters increases the size of the opening by 70% to your larger TMIC. STI or aftermarket TMICs can increase your internal ...

The GrimmSpeed line of splitters increases the size of the opening by 70% to your larger TMIC. STI or aftermarket TMICs can increase your internal ...

The GrimmSpeed line of splitters increases the size of the opening by 70% to your larger TMIC. STI or aftermarket TMICs can increase your internal ...

The GrimmSpeed line of splitters increases the size of the opening by 70% to your larger TMIC. STI or aftermarket TMICs can increase your internal ...

The GrimmSpeed line of splitters increases the size of the opening by 70% to your larger TMIC. STI or aftermarket TMICs can increase your internal ...

The GrimmSpeed line of splitters increases the size of the opening by 70% to your larger TMIC. STI or aftermarket TMICs can increase your internal ...

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 amoun...

Tired 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? Ann...

Tired 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? Ann...

GrimmSpeed™ does it again! Introducting our enlarged bore Intake Manifold to TGV gaskets. Why do you want the enlarged bore style vs. the small oem...

The turbo studs on the FA turbo motors are notoriously difficult to deal with. If you're lucky enough to get the nuts off without drama originally,...

We know running a front plate sucks. The unsightliness and blockage of airflow into your radiator and / or front mount is a burden some of us in se...

We know running a front plate sucks. The unsightliness and blockage of airflow into your radiator and / or front mount is a burden some of us in se...

License plates are a necessary evil on the front of our cars, but you can save your front bumper from looking boring or blocking flow to your FMIC...

We know running a front plate sucks. The unsightliness and blockage of airflow into your radiator and / or front mount is a burden some of us in se...

GrimmSpeed has always been on the forefront of innovation when it comes to well-engineered functional parts for your vehicle. When we introduced a ...

GrimmSpeed has always been on the forefront of innovation when it comes to well-engineered functional parts for your vehicle. When we introduced a ...

Clean up that engine bay and show your GrimmSpeed pride with our newly-designed Subaru Battery Tiedown. Laser cut, then CNC bent and powdercoated w...

Clean up that engine bay and show your GrimmSpeed pride with our newly-designed Subaru Battery Tiedown. Laser cut, then CNC bent and powdercoated w...

The OEM Subaru crank pulley has been a cause for concern ever since its original design. It is extremely heavy, susceptible to catastrophic failure...

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does th...

The OEM Subaru crank pulley has been a cause for concern ever since its original design. It is extremely heavy, susceptible to catastrophic failure...

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does th...

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does th...

The OEM Subaru crank pulley has been a cause for concern ever since its original design. It is extremely heavy, susceptible to catastrophic failure...

Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does th...

The Pulley Tool to put all other tools to rest! The long awaited answer to the antique Subaru pulley removal tool, bolts stuck through boards, and ...

GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price. FINALLY you have an option for an extra thick Exhaust Manifold to Up Pipe Gas...

The Next Level of Boost Control. We are proud to present The GrimmSpeed Manual Boost Controller, the most refined manual BC available on the market...

The Next Level of Boost Control. We are proud to present The GrimmSpeed Manual Boost Controller, the most refined manual BC available on the market...

The Next Level of Boost Control. We are proud to present The GrimmSpeed Manual Boost Controller, the most refined manual BC available on the market...

Pressing Subaru brakes leaves a lot to be desired, especially when every inch counts in a race or when you are depending on them to save your life!...

Pressing Subaru brakes leaves a lot to be desired, especially when every inch counts during a race or when you are depending on them to save your l...

Pressing the Subaru/Scion brakes leaves a lot to be desired, especially when every inch counts in a race or when you are depending on them to save ...

The GrimmSpeed engineering and manufacturing teams are known for designing and producing products that use high quality materials, offer perfect fi...

The GrimmSpeed engineering and manufacturing teams are known for designing and producing products that use high quality materials, offer perfect fi...