GrimmSpeed

The GrimmSpeed shift boot retainer will hold your shift boot in place around the base of the shift knob. This is meant for Subaru 5spd owners that ...

The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid fo...

Will not fit NZ plates

The GrimmSpeed Charge Pipe Kit replaces the restrictive stock plastic unit on the FA20-powered WRX with larger diameter CNC mandrel bent aluminum ...

As with other FMIC kits, the GrimmSpeed Front Mount Intercooler requires the removal of your factory bumper beam in order to fit its massive core. ...

Introduction This dry element intake filter is dimensionally identical to the oiled air filters that are included with the GrimmSpeed WRX/STI/BRZ/F...

Installation Note - Take care to install the air filter onto the intake tube properly. Push the filter onto the tube no more than 1" before tighten...

Ask and You Shall Receive. We have had a TON of requests from people to start selling our new-style windshield banner online, so here they are i...

The shrouds you didn’t know you needed!   The original GrimmSpeed Fender Shrouds for the 15+ chassis were SUCH a big hit that we decided to introdu...

Spruce up your engine bay and make it stand out! At GrimmSpeed, we pride ourselves in the design of our aesthetic pieces just as much as our per...

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

The bar has been raised. So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it come...

With so many catback exhaust options available, our goal was to create a unique, refined sound in an extremely high-quality hand-welded system. We'...

The turbo to o2 housing seal is absolutely critical on Evo models. This gasket is known to create leaking issues that can be a bear to track down a...

The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together as a compl...

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 and th...

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 and th...

The beauty of the GrimmSpeed Staged Power Packages is that all of the included components were designed and tested to work well together as a compl...

Our new 2X Thick 3" 2-Bolt gasket is hands down the most beefy 3" 2-Bolt gasket on the market. 12 LAYERS!Tired of the endless searching for a 3" 2 ...

Adapt your GrimmSpeed 08-14 WRX or 05-09 Legacy Top Mount Intercooler for use with “STI-Style” OEM or aftermarket turbochargers! Looking to upgrade...

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...

Adding a well-design, well-built aftermarket up pipe is one of the first things you should do to your Subaru. Our ultimate goal was to make the be...

An FA20 BCS for Aftermarket Turbos: 1/4in Barbed Fittings - Matches the factory turbo and wastegate hose size 3-Port Solenoid - Proprietary inte...

An elegantly engineered solution: Custom Machined Adapter - Makes use of the factory inlet recirculation port, instead of blocking it off Black ...

Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" 2 bolt gaske...

A Return to Form, RefinedThe GrimmSpeed Gentleman’s Exhaust returns with a redesigned Version 2 layout focused on fitment, longevity, and maintaini...

A Return to Form, RefinedThe GrimmSpeed Gentleman’s Exhaust is back, now redesigned to improve installation, dial in fitment, and maintain the refi...

The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here!The long-awaited return of t...

Part Number: 113026Over the years, GrimmSpeed Engineers have proven that we are capable of manufacturing the highest quality, best performing exhau...

Lock Down Your Drivetrain for More Predictable Shifting!The GrimmSpeed Subaru Engine Mount Kit offers a game changing upgrade for Subaru WRX owners...

Lock Down Your Drivetrain for More Predictable Shifting!The GrimmSpeed Subaru Engine Mount Kit offers a game changing upgrade for Subaru WRX owners...

Part Number: 077044Kill that exhaust leak for GOOD!GrimmSpeed Subaru 3 in. Downpipe AdpaterFlared Adapter Transition! (Creates a smooth transition ...

Minimize Heat Soak with the ALL NEW Turbo Heat Shield! The turbocharger is one of the hottest components in your engine bay and can have some real...

High-quality replacement TMIC Y-Pipe Kit.  Special Fitment Note: Supported fitments include only those vehicles running OEM STI and GrimmSpeed Top...

Perfect size and weight for the perfect shift, every time. The GrimmSpeed Stubby Knobs are for car enthusiasts that prefer a shift knob that's o...

A simple way to clean your bay. Simplify your 2015-17 STI engine bay with The GrimmSpeed Sound Generator Plug Kit. The stock sound generator is ...

Add a touch of class to your bay! Some OE parts look passable and others miss the mark. In the case of the factory post MAF hose, the quicker you ...

Out with the old, in with the new!     These bushing kits were created to be a replacement or upgrade for your GrimmSpeed Pitch Stop Mount. The...

SEAL the deal with a set of GrimmSpeed FA20 Head Gaskets! GrimmSpeed has set the standard for quality when it comes to aftermarket replacement gask...

GrimmSpeed Subaru Front Mount Intercooler "STI-Style" Turbo Outlet Hose 08-14 WRX Adapt your GrimmSpeed 2008-14 WRX Front Mount Intercooler for ...

Meticulous Engineering, Unparalleled Craftsmanship GrimmSpeed Intercoolers have set the gold standard of how a high performance heat exchanger shou...

Meticulous engineering meets elegant design. For years you've been asking us for intakes, and for years we've silently worked to create a solution ...

With so many catback exhaust options available, our goal was to create a unique, refined sound in an extremely high-quality hand-welded system. We'...

Dress to impress! GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one sma...

The WHOLE Package! GrimmSpeed knows that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust part...