Fits select 2002-2007 Subaru Impreza, WRX, and STI (2.5i / RS / TS / Outback Sport).

Replace your aging, brittle factory rubber with the GrimmSpeed Red Radiator Hose Kit. Over time, standard EPDM rubber hoses degrade from constant heat cycles and pressure, leading to cracks, swelling, or complete failure. This reinforced silicone kit provides a significant upgrade in both cooling system reliability and engine bay aesthetics by replacing the primary upper and lower hoses.

Constructed from multi-layer reinforced silicone, these hoses are designed to withstand significantly higher temperatures and pressures than OEM components. Each hose is precision-molded to ensure a direct-fit installation using your factory mounting points, maintaining clear routing through the engine bay.

• Manufacturer Part Number: GRM405329
• Color: Red
• Material: Multi-layer reinforced silicone
• Component Type: Direct-fit radiator hose replacement
• Includes: (1) Upper Radiator Hose, (1) Lower Radiator Hose

Fits 2004-2008 Subaru Forester XT, including XT Limited, XT Premium, and Sports 2.5 XT models.

Maintain the integrity of your cooling system with the GrimmSpeed Radiator Hose Kit. Factory rubber hoses are susceptible to heat soak and eventual failure after years of high-temperature engine bay cycles. This kit replaces aged original equipment with durable hoses designed to withstand the pressures of a performance cooling system without leaking or collapsing.

• Direct replacement for factory upper and lower radiator hoses
• Engineered for precise fitment in the 2004-2008 Forester XT engine bay
• Durable multi-layer construction provides superior heat and pressure resistance
• Finished in a clean black to match or refresh your engine's aesthetic
• Manufacturer Part Number: GRM405323

Fits 2014-2018 Subaru Forester 2.0XT and 2015-2020 Subaru WRX models.

Factory rubber radiator hoses are prone to drying, cracking, and eventual failure due to constant heat-cycling and high cooling system pressures. The GrimmSpeed Radiator Hose Kit replaces these aging OE components with high-temp, multi-layer reinforced silicone designed to withstand the demands of spirited driving and track use. These hoses provide a more durable seal and resist the expansion that can occur with stock rubber under heavy thermal load.

• Direct-fit replacement for factory upper and lower radiator hoses
• Multi-layer reinforced silicone construction for superior pressure and heat resistance
• Durable black finish for a clean, professional engine bay aesthetic
• Engineered to maintain internal diameter and flow under extreme cooling cycles
• Manufacturer Part Number: GRM405324

Vehicle Fitment:

• 2014-2018 Subaru Forester 2.0XT (Premium, Touring)
• 2015-2020 Subaru WRX (Base, Limited, Premium)

Fits 2016-2018 Ford Focus RS.

The GrimmSpeed Lightweight Battery Mount is designed for drivers looking to optimize their 2016-2018 Ford Focus RS for track or performance use by shedding unnecessary front-end weight. The factory battery box is bulky and heavy; this mounting solution allows you to swap it for a compact, lightweight battery while ensuring it remains securely fastened during high-G cornering and aggressive driving.

• Direct fitment for 2016-2018 Ford Focus RS
• Replaces the oversized factory battery tray to reduce curb weight
• Improves front-to-rear weight distribution for better handling response
• Engineered for a secure, bolt-on installation using existing mounting points
• Manufacturer Part Number: GRM121023

Fits Subaru models equipped with 5-speed and 6-speed manual transmissions.

The GrimmSpeed Stainless Steel Shift Knob is engineered to improve shifting precision and tactile feedback. Precision-machined from solid stainless steel, this weighted knob provides the necessary inertia to help the shifter gate more smoothly, reducing the notchiness often felt with lighter factory units. The durable black finish provides a clean, understated look that resists wear and maintains grip during spirited driving.

• Manufactured from heavy stainless steel for increased shifting momentum
• Durable black finish for long-lasting protection and aesthetics
• Ergonomic design for comfortable hand placement and control
• Direct-fit replacement for the factory manual shift knob
• Compatible with both 5-speed and 6-speed Subaru manual gearboxes
• Manufacturer Part Number: GRM380001

Fits select 2002-2007 Subaru Impreza, WRX, and STI models.

Factory rubber radiator hoses eventually become brittle and crack due to constant heat cycles and pressure. This GrimmSpeed Radiator Hose Kit provides a durable replacement for your cooling system, ensuring reliable coolant flow between the engine and radiator. Designed for a precise fit on the GD and GG Subaru chassis, these hoses offer improved resistance to heat soak and expansion compared to aged OE components. The kit includes both the upper and lower radiator hoses, providing a comprehensive refresh for your vehicle's primary cooling lines.

• Direct replacement for factory upper and lower radiator hoses
• Durable construction resists heat and pressure expansion
• Engineered for precise fitment on 2002-2007 Subaru Impreza chassis
• Sleek black finish for a clean, professional engine bay appearance
• Manufacturer Part Number: GRM405325

Fits 2014-2020 Subaru WRX and Forester XT (2.0L). This kit is designed to replace factory rubber radiator hoses that degrade and weaken over time due to extreme engine bay temperatures and pressure cycles. Upgrading to silicone ensures a more durable cooling system that can handle the increased demands of performance driving.

Constructed from high-grade, multi-layer silicone, these hoses offer superior heat resistance and burst strength compared to OEM EPDM rubber. The smooth internal bore optimizes coolant flow, while the vibrant red finish adds a custom look to the engine bay. This kit includes the necessary hardware for a direct-fit installation onto the factory radiator and engine water outlets.

• Direct replacement for factory upper and lower radiator hoses
• Multi-layer silicone construction for maximum durability and pressure resistance
• Resistant to coolant additives and high-temperature degradation
• Includes stainless steel worm-gear clamps for a secure, leak-free seal
• Manufacturer Part Number: GRM405328

The GrimmSpeed Stubby Shift Knob provides a weighted, ergonomic upgrade for drivers who prefer a compact profile and direct shifting feel. Machined from solid stainless steel, this knob adds significant mass compared to standard factory units, helping carry momentum through the gate for smoother, more deliberate gear engagements.

Finished in a durable red coating, this stubby version sits lower on the shifter lever than traditional knobs, effectively lowering your hand position for a sportier feel. The solid construction ensures it won't crack or wear down like plastic alternatives, providing a reliable connection to your transmission for the life of the vehicle.

• Machined from heavy-weight stainless steel for improved shift momentum
• Compact "Stubby" profile for a lower hand position and shorter feel
• Durable red finish resists wear and provides a performance accent
• Direct thread-on installation for M12x1.25 shifter levers
• Manufacturer Part Number: GRM380003

Fits select 2013-2020 Subaru BRZ, Toyota 86, and Scion FR-S models.

The GrimmSpeed Front Strut Tower Brace (GRM098007) is engineered to bridge the gap between your vehicle's strut towers, significantly increasing chassis rigidity. By tying these points together, the brace reduces front-end flex during high-load cornering, ensuring your suspension geometry remains consistent for more predictable handling and sharper steering response. Finished in a durable black coating, this brace offers a clean, functional upgrade to your engine bay while mounting directly to factory points for a straightforward installation.

• Enhances chassis stiffness and reduces strut tower deflection under load
• Improves steering precision and overall handling feedback
• Durable black finish provides a professional, low-profile appearance
• Direct bolt-on fitment using existing factory mounting locations
• Designed specifically for the ZC6 and ZN6 chassis platforms
• Manufacturer Part Number: GRM098007

The GrimmSpeed Lightweight Battery Mount Kit (GRM121028) provides a secure, streamlined solution for drivers looking to reduce front-end weight. Designed to replace the bulky factory tray, this kit allows for the installation of a smaller lightweight battery, improving the vehicle's weight distribution and overall engine bay organization. Each component is engineered for a precise fit, ensuring your battery remains stable even under spirited driving conditions.

• Direct fit for 2008-2014 Subaru WRX and STI models
• Enables significant weight savings by accommodating smaller batteries
• Precision mounting points for a secure, rattle-free installation
• Replaces restrictive factory battery hardware
• Includes all necessary mounting hardware
• Manufacturer Part Number: GRM121028

Fits 2013-2020 Subaru BRZ, Scion FR-S, and Toyota 86 models.

Replace your factory hood prop rod with the GrimmSpeed Hood Strut Kit to clear up space and improve access to your engine bay. Designed for a seamless, bolt-on installation, these gas-charged struts allow for a cleaner aesthetic while making maintenance and show-car display much easier. By eliminating the manual prop rod, you gain unobstructed access to the front of the engine for tuning, cleaning, or repairs.

• Heavy-duty gas-charged struts for reliable, smooth operation
• Direct bolt-on installation using factory mounting points
• Clears up engine bay workspace for easier maintenance and visibility
• Designed to support the weight of the OEM hood
• Manufacturer Part Number: GRM097001

The GrimmSpeed Stubby Shift Knob (GRM380002) is engineered for drivers seeking a more mechanical and precise shifting experience. Machined from solid stainless steel and finished in a durable black textured coating, this weighted knob adds significant mass to the shifter assembly. The increased weight helps carry momentum through the shift gate, smoothing out gear engagements and reducing the effort required to overcome synchro resistance.

• CNC machined from solid stainless steel for maximum durability and shift weight
• Compact "stubby" profile for an ergonomic grip and lower hand position
• Black textured finish provides a consistent grip and resists wear over time
• M12x1.25 thread pitch designed for direct installation on compatible shifter stalks
• Manufacturer Part Number: GRM380002

Fits 2008-2014 Subaru WRX and STI.

The GrimmSpeed Lightweight Battery Mount Kit (GRM121034) allows you to swap your heavy, oversized factory battery for a compact, lightweight alternative. By reducing weight at the front of the vehicle, you can improve handling balance while cleaning up the aesthetics of the engine bay. This mount is designed to securely hold your battery in place during spirited driving or track sessions.

Constructed for durability and a precise fit, the mount is CNC laser-cut and features a vibrant red powder-coated finish for superior corrosion resistance. It utilizes factory mounting points for a straightforward installation that requires no drilling or permanent modification to the vehicle.

• Manufacturer Part Number: GRM121034
• Finish: Red Powder Coat
• Fitment: 2008-2014 Subaru WRX and STI
• Includes all necessary hardware for a secure installation
• Reduces front-end weight compared to OEM battery tray

Fits 2008-2014 Subaru Impreza WRX and WRX STI (including Limited, Premium, and Special Edition models).

Eliminate the cumbersome factory prop rod and improve access to your engine bay with the GrimmSpeed Hood Strut Kit. These hydraulic struts are engineered to support the weight of the hood safely and securely, providing a cleaner look and unobstructed workspace during maintenance or at car shows. By mounting to existing factory locations, these dampers allow for smooth, hand-operated opening and closing without the need for the original metal support rod.

• High-pressure hydraulic struts provide consistent lifting force and reliable hold
• Replaces the factory manual prop rod for better engine bay clearance
• Designed specifically for the 2008-2014 GE/GH/GR/GV chassis
• Complete kit includes all necessary mounting hardware
• Manufacturer Part Number: GRM097029

Fits select 2008-2014 Subaru Impreza, WRX, and WRX STI models (including 2.5 GT, 2.5i, Outback Sport, and Premium trims).

This GrimmSpeed Radiator Shroud is designed to improve cooling efficiency by sealing the gap between the radiator and the core support. By preventing air from escaping over the top of the radiator, it forces more high-pressure airflow through the core to help maintain stable operating temperatures. For added utility during maintenance, this shroud features an integrated tool tray—providing a secure, reachable spot for bolts and sockets so they don't disappear into the engine bay.

• Direct bolt-on installation using factory mounting points
• Integrated tool tray for organized engine bay maintenance
• Durable black finish for a clean, professional aesthetic
• Optimizes airflow through the radiator core
• Manufacturer Part Number: GRM096008

Fits Subaru vehicles equipped with 5-speed or 6-speed manual transmissions.

The GrimmSpeed Stainless Steel Shift Knob (GRM380000) provides a significant upgrade to your interior ergonomics and shifting performance. By utilizing a weighted stainless steel construction, this knob adds mass to the shifter assembly. This increased inertia helps the transmission engage gears more smoothly and reduces the physical effort required to overcome internal synchro resistance during gear changes.

• Precision CNC machined from solid stainless steel for long-lasting durability
• Weighted design improves shift feel and gate engagement precision
• Durable red finish provides a high-contrast interior accent
• Direct fitment for Subaru 5-speed and 6-speed manual gearboxes
• Manufacturer Part Number: GRM380000

The ergonomic profile is designed to feel natural in the hand, whether you prefer a side-grip or top-grip shifting style. By replacing the lighter factory plastic or leather knob with this heavy-duty stainless steel alternative, you achieve a more mechanical and connected driving experience.

Fits 2008-2018 Subaru WRX and STI.

The GrimmSpeed Lightweight Battery Tie Down replaces the bulky, often corroded factory unit with a sleek, minimalist alternative. Designed to provide a clean, custom look for your engine bay, this tie down secures your battery without the excess weight or footprint of the original equipment. It serves as a direct-fit replacement that maintains battery stability through vibration and cornering forces.

• Genuine GrimmSpeed component for precise fitment
• Lightweight design reduces engine bay clutter
• Durable black finish for long-lasting corrosion resistance
• Manufacturer Part Number: GRM121026

Fits 2015-2021 Subaru WRX and STI.

The GrimmSpeed Radiator Shroud is engineered to optimize your vehicle's cooling system by sealing the gap between the top of the radiator and the radiator support. This design forces incoming air through the radiator core rather than allowing it to escape over the top, improving thermal efficiency during high-load driving conditions. Beyond its functional benefits, this shroud significantly cleans up the appearance of the engine bay by replacing the utilitarian factory plastic with a sleek, finished component.

• Direct bolt-on installation using factory mounting points
• Durable aluminum construction prevents warping and resists engine bay heat
• Hard black powder-coat finish for long-lasting corrosion resistance
• Increases airflow through the radiator fins for better cooling performance
• Manufacturer Part Number: GRM096039

Fits select 2013-2020 Subaru BRZ, Toyota 86, and Scion FR-S models.

The GrimmSpeed Strut Tower Brace is engineered to improve handling precision by tying the front strut towers together to reduce chassis flex. During aggressive cornering, the vehicle's strut towers can deflect, causing changes in suspension geometry and a loss of steering feel. This brace bridges that gap, providing a more rigid front end for sharper turn-in and more consistent tire contact. Finished in a signature red powder coat, it adds a performance-focused look to the engine bay while utilizing factory mounting points for a straightforward installation.

• Reduces chassis deflection for improved steering response
• High-strength construction maintains suspension geometry
• Durable red powder-coated finish for corrosion resistance
• Direct bolt-on fitment with no drilling required
• Manufacturer Part Number: GRM098009

Complete your vehicle's exterior look with the GrimmSpeed License Plate Frame (Pair). These frames offer a clean, professional alternative to dealership-branded frames, providing a finished aesthetic that aligns with a performance-oriented build. Designed to fit standard license plates, this set ensures your vehicle maintains a cohesive appearance from front to back.

• Sold as a set of two (2) frames for front and rear application
• Slim-profile design ensures registration stickers remain visible
• Standard dimensions for compatibility with US and Canadian license plates
• Genuine GrimmSpeed component: Part Number GRM111002

Fits select 2002-2007 Subaru Impreza (WRX, STI, RS, TS, Outback Sport) and 2005-2006 Saab 9-2X models.

This GrimmSpeed license plate relocation kit provides a secure, bolt-on solution for mounting your front license plate without drilling permanent holes into your front bumper. By utilizing the factory front tow hook location, this kit moves the plate away from the center of the bumper, allowing for better airflow to the radiator or intercooler while maintaining a clean, technical aesthetic.

• Manufacturer Part Number: GRM094005
• Fitment: 2002-2007 Subaru Impreza and 2005-2006 Saab 9-2X
• Installation: Bolts directly into the factory front tow hook port; no drilling or permanent modification required
• Construction: Designed for high strength and durability to resist vibration at highway speeds

The kit includes the threaded adapter post, mounting bracket, and all necessary hardware for a complete installation on the following vehicles:

Fits 2015+ Subaru WRX and STI models.

GrimmSpeed Fender Shrouds provide a clean, professional finish to your engine bay by bridging the gap between the inner fenders and the chassis. Designed to hide unsightly factory hardware and wiring, these shrouds offer a "tucked" look that complements other performance upgrades under the hood.

• Laser-cut aluminum construction for precise fitment and weight savings
• Durable textured black powder-coated finish for heat and corrosion resistance
• Direct bolt-on installation using factory mounting points for a secure fit
• Integrated cutouts allow for easy access to critical components without removal
• Includes all necessary hardware for a complete install
• Manufacturer Part Number: GRM096049

Fits 2022-2024 Subaru BRZ and Toyota GR86.

The GrimmSpeed High Lift Hood Strut kit replaces the restrictive factory prop rod with a pair of gas-charged dampers, providing a cleaner engine bay and improved workspace. The "High Lift" design increases the hood opening angle beyond the stock position, giving you more overhead clearance and better natural light when performing maintenance or showing off your build. By eliminating the manual prop rod, you remove a common obstacle that often interferes with intake or battery service.

• High-lift geometry provides superior engine bay access compared to the OE prop rod
• Gas-charged dampers ensure smooth, controlled hood operation and reliable support
• Custom-engineered mounting brackets utilize factory mounting points for a secure fit
• Reduces clutter in the engine compartment for a more professional appearance
• Manufacturer Part Number: GRM097035

Fits 2015+ Subaru WRX and STI models.

GrimmSpeed Fender Shrouds transform the appearance of your engine bay by masking the unsightly gaps between the inner fender and the chassis. These shrouds provide a sleek, finished look that bridges the transition from the fender to the engine compartment, preventing road debris from accumulating in the fender wells while adding a high-end custom aesthetic.

Each shroud is engineered for a precise fit on the VA chassis, utilizing existing factory mounting points for a simple bolt-on installation. The durable red powder-coated finish is designed to withstand engine bay heat and matches other GrimmSpeed dress-up and performance components for a cohesive look under the hood.

• Direct fit for 2015+ Subaru WRX and STI models
• Precision-engineered for a clean, gap-free fitment
• Durable red powder-coat finish for heat and corrosion resistance
• Installs easily using factory mounting locations
• Manufacturer Part Number: GRM096048

Fits select 2008-2014 Subaru Impreza, WRX, and STI models, and 2008-2009 Subaru Legacy models.

The thin sheet metal of the Subaru firewall is prone to flexing under heavy braking, which manifests as a soft or inconsistent pedal feel as the master cylinder physically shifts. The GrimmSpeed Master Cylinder Brace (MPN: GRM091029) provides a rigid bridge between the brake master cylinder and the driver-side shock tower. By creating a mechanical stop, this brace eliminates firewall deflection, ensuring that every bit of pedal pressure is converted into braking force rather than wasted energy.

• CNC laser-cut and bent steel construction for maximum rigidity
• Durable textured black powder coat finish for corrosion resistance
• Large adjustment bolt with a high-visibility red anodized cap
• Includes all necessary high-grade mounting hardware for a bolt-on installation
• Reduces firewall flex to provide a firm, tactile brake pedal feel
• Manufacturer Part Number: GRM091029

Fits select 2012-2020 Subaru WRX, STI, Impreza, and Crosstrek models.

The GrimmSpeed License Plate Relocation Kit provides a clean, drill-free solution for mounting your front license plate. By utilizing the factory tow hook point, this kit avoids the need to punch permanent holes into your front bumper cover. This offset mounting position also helps improve cooling efficiency by keeping the plate out of the direct path of the radiator or intercooler intake.

• Utilizes factory tow hook mount to preserve front bumper integrity
• Improves airflow to cooling systems by relocating the plate away from the main grille
• High-strength hardware designed to resist vibration and movement at speed
• Complete kit includes all necessary mounting components for a direct fit
• Manufacturer Part Number: GRM094063

The GrimmSpeed Subaru Lightweight Crank Pulley Removal and Install Tool is a specialized service instrument designed to facilitate safe pulley swaps and timing belt maintenance. Standard engine rotation makes it difficult to apply the necessary torque to the crankshaft bolt; this tool provides the counter-leverage required to hold the pulley stationary without damaging the engine or the pulley itself.

Manufactured from high-strength, laser-cut steel, this tool interfaces directly with the alignment holes on the face of the pulley. It allows for one-person operation when breaking loose stubborn factory bolts or reaching final torque specs during installation. By using a dedicated holder, you avoid risky methods like jamming the flywheel or relying solely on impact wrenches which can lead to imprecise torque application.

• Heavy-duty laser-cut steel construction for long-term durability
• Precision-fit pins designed for Subaru lightweight pulley hole patterns
• Provides necessary leverage for high-torque crankshaft bolt removal and installation
• Ergonomic handle design for stable grip and control
• Manufacturer Part Number: GRM095011

Fits 2013-2020 Subaru BRZ, Toyota 86, and Scion FR-S.

Eliminate firewall flex and restore confidence in your braking system with the GrimmSpeed Master Cylinder Brace. Under heavy braking, the thin sheet metal of the firewall can flex, leading to a soft or mushy pedal feel. This brace provides a rigid mechanical bridge between the master cylinder and the vehicle's shock tower, ensuring that every millimeter of pedal travel is converted into stopping power rather than chassis deflection.

• Reduces firewall deflection for firmer, more consistent brake pedal feel
• Improves braking modulation and tactile feedback during spirited driving
• Precision-engineered for a direct bolt-on fit to factory mounting points
• Durable construction designed to withstand high-stress engine bay environments
• Manufacturer Part Number: GRM091038

Fits select 2008-2014 Subaru Impreza, WRX, and STI models (including 2.5 GT, 2.5i, and Outback Sport).

Maximize the efficiency of your cooling system with the GrimmSpeed Radiator Shroud. This shroud is designed to bridge the gap between the top of the radiator and the upper core support, preventing air from escaping over the radiator. By forcing more air through the cooling fins, it helps maintain lower coolant temperatures during spirited driving or track use. As an added benefit for DIY enthusiasts, it features an integrated tool tray to keep sockets and fasteners organized while you work under the hood.

• Direct replacement for the flimsy factory plastic shroud
• Integrated tool tray for convenient hardware storage during maintenance
• Durable red powder-coated finish for corrosion resistance and engine bay aesthetics
• Precision-engineered for a perfect fit using factory mounting locations
• Manufacturer Part Number: GRM096009

Fits 2015-2023 Subaru WRX and STI models.

Upgrading to Hella Supertone or Sharptone horns shouldn't require hacking into your vehicle's factory electrical system. The GrimmSpeed Hella Horn Wiring Harness provides a professional, plug-and-play solution that eliminates the need for wire splicing, soldering, or crimping. Designed specifically for the 2015+ Subaru chassis, this harness ensures your aftermarket horns receive consistent power while maintaining a clean, OE-style engine bay appearance.

Each harness is constructed with high-grade automotive wire protected by a durable loom to withstand heat and moisture. The connectors are precision-molded to interface directly with the factory horn plug and Hella terminals, significantly reducing installation time and potential failure points.

• Complete plug-and-play installation with no wire cutting or splicing required
• Protective heat-shrink and loom for long-term weather resistance
• Optimized length for clean routing on 2015+ Subaru WRX/STI platforms
• Engineered for use with Hella Supertone and Sharptone horn kits
• Manufacturer Part Number: GRM040026