GrimmSpeed Car Performance Parts

GrimmSpeed
  • GrimmSpeed® - Stealthbox Air Intake Kit
    GrimmSpeed®Stealthbox Air Intake Kit
    0
    # sp184072
    Stealthbox Air Intake Kit by GrimmSpeed®. Make your engine function at its full efficiency by choosing from their comprehensive selection of top-grade performance air intake parts. Crafted by the industry-leading professionals who use...
    Plus 32wtq (14.3%) and +21whp (9.6%)Designed in CAD - Perfect mating with the factory turbo and ram-air scoop
    $349.00 - $399.00
  • GrimmSpeed® - Radiator Shroud
    GrimmSpeed®Radiator Shroud
    0
    # sp245000
    Radiator Shroud by GrimmSpeed®. 1 Piece. With Tool Tray. How many times have you lost a wrench or socket in your engine bay? Yeah, that's what I thought, too many to count. Finally after all of these years of losing tools, GrimmSpeed...
    Innovative Integrated Tool Tray!Keeps Radiator Running Cooler (directs air through radiator)
    $79.00
  • GrimmSpeed® - TRAILS Fender Flare Kit
    GrimmSpeed®TRAILS Fender Flare Kit
    0
    # sp249327
    TRAILS Fender Flare Kit by GrimmSpeed®. GrimmSpeed has set the standard not only for creating high quality performance upgrades, but also aesthetic parts. These kits include everything you need to take your vehicle from looking like...
    OEM-Quality Textured Plastic MaterialEach Flare is 2" (50mm) Wider than Body
    $540.00
  • GrimmSpeed® - Pulley Cover
    GrimmSpeed®Pulley Cover
    0
    # sp210199
    Pulley Cover by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in place above your alternator...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Battery Mount
    GrimmSpeed®Lightweight Battery Mount
    0
    # sp179602
    Lightweight Battery Mount by GrimmSpeed®. Designed utilizing the latest technology, this product by GrimmSpeed features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured...
    Laser cut, CNC Bent steel bracketDurable black texture powdercoat
    $99.00 - $135.00
  • GrimmSpeed® - Aerosol Automotive Paint
    GrimmSpeed®Aerosol Automotive Paint
    0
    # 4714760985
    12 fl. oz. Aerosol Automotive Paint by GrimmSpeed®. 1 Piece. If you’re looking for a reliable solution to complete your project, this 1st-grade product is right up your alley. Designed utilizing the finest materials, it delivers...
    Expertly made from sturdy materialsMade to help enhance the performance of your vehicle
    $20.00 - $22.00
  • GrimmSpeed® - Downpipe Gasket
    GrimmSpeed®Downpipe Gasket
    0
    # sp223874
    Downpipe Gasket by GrimmSpeed®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...
    Direct replacementManufactured to strict engineering quality standards
    $21.00 - $29.00
  • GrimmSpeed® - Hella™ Horn Wiring Harness
    GrimmSpeed®Hella™ Horn Wiring Harness
    0
    # sp150866
    Hella™ Horn Wiring Harness by GrimmSpeed®. GrimmSpeed engineers overlaid 3D scans of GD, GR and VA chassis core support in CAD. From there, a unique design was created that allows the same bracket to work on all supported models. This...
    Extremely Adjustable - Mount them wide, tight, high, low or anywhere in betweenHeavy Duty Construction - 1/8" thick laser cut steel to support hella horns, lights, etc
    $34.00
  • GrimmSpeed® - Engine Coolant Radiator Shroud
    GrimmSpeed®Engine Coolant Radiator Shroud
    0
    # sp251327
    Engine Coolant Radiator Shroud by GrimmSpeed®. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide excellent...
    High quality at an affordable priceExpertly made from premium materials
    $79.00
  • GrimmSpeed® - Black Stealthbox Air Intake Kit
    GrimmSpeed®Black Stealthbox Air Intake Kit (060077)
    0
    # mpn4497962097
    Black Stealthbox Air Intake Kit (060077) by GrimmSpeed®. Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake system for the 2015+ WRX. Of cse performance is the highest priority, but...
    Plus 32wtq (14.3%) and +21whp (9.6%)Designed in CAD - Perfect mating with the factory turbo and ram-air scoop
    $349.00
  • GrimmSpeed® - Radiator Shroud
    GrimmSpeed®Radiator Shroud (096032)
    0
    # mpn4497962023
    Radiator Shroud by GrimmSpeed®. Finish: Texture Red Powdercoated. 1 Piece. With Tool Tray. How many times have you lost a wrench or socket in your engine bay? Yeah, that's what I thought, too many to count. Finally after all of these...
    Innovative Integrated Tool Tray!Keeps Radiator Running Cooler (directs air through radiator)
    $79.00
  • GrimmSpeed® - TRAILS Style Fender Flares
    GrimmSpeed®TRAILS Style Fender Flares (TBG114035)
    0
    # mpn4871864336
    TRAILS Style Fender Flares by GrimmSpeed®. Set of 4 Pieces. GrimmSpeed has set the standard not only for creating high quality performance upgrades, but also aesthetic parts. These kits include everything you need to take your vehicle...
    OEM-Quality Textured Plastic MaterialEach Flare is 2" (50mm) Wider than Body
    $540.00
  • GrimmSpeed® - TRAILS Style Fender Flares
    GrimmSpeed®TRAILS Style Fender Flares (TBG114036)
    0
    # mpn4871864332
    TRAILS Style Fender Flares by GrimmSpeed®. Set of 4 Pieces. GrimmSpeed has set the standard not only for creating high quality performance upgrades, but also aesthetic parts. These kits include everything you need to take your vehicle...
    OEM-Quality Textured Plastic MaterialEach Flare is 2" (50mm) Wider than Body
    $540.00
  • GrimmSpeed® - Lightweight Battery Mount
    GrimmSpeed®Lightweight Battery Mount (121023)
    0
    # mpn4497962056
    Lightweight Battery Mount by GrimmSpeed®. Designed utilizing the latest technology, this product by GrimmSpeed features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured...
    Laser cut, CNC Bent steel bracketDurable black texture powdercoat
    $135.00
  • GrimmSpeed® - Manual Stainless Steel Neon Green Shift Knob
    GrimmSpeed®Manual Stainless Steel Neon Green Shift Knob (380004)
    0
    # mpn4846077161
    Manual Stainless Steel Neon Green Shift Knob by GrimmSpeed®. 1 Piece. Each knob is machined from solid 304 stainless steel rod right here in Minnesota and weighs in at 675g. Each shift knob also receives laser etched GrimmSpeed logos...
    Expertly made from sturdy materialsMade to help enhance the performance of your vehicle
    $69.00
  • GrimmSpeed® - 12 fl. oz. Cherry Blossom Aerosol Automotive Paint
    GrimmSpeed®12 fl. oz. Cherry Blossom Aerosol Automotive Paint (054003)
    0
    # mpn4497962108
    12 fl. oz. Cherry Blossom Aerosol Automotive Paint (054003) by GrimmSpeed®. 1 Piece. Stepping with style, GrimmSpeed brings you the ONLY way to get 100% paint match to Subaru's famed "Cherry Blossom" color. Paint your suspension...
    Expertly made from sturdy materialsMade to help enhance the performance of your vehicle
    $20.00
  • GrimmSpeed® - Downpipe Gasket
    GrimmSpeed®Downpipe Gasket (Gasket-020002)
    0
    # mpn4497962059
    Downpipe Gasket by GrimmSpeed®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a...
    Direct replacementManufactured to strict engineering quality standards
    $21.00
  • GrimmSpeed® - Hella™ Horn Wiring Harness
    GrimmSpeed®Hella™ Horn Wiring Harness (040005)
    0
    # mpn4646057435
    Hella™ Horn Wiring Harness by GrimmSpeed®. 1 Piece. GrimmSpeed engineers overlaid 3D scans of GD, GR and VA chassis core support in CAD. From there, a unique design was created that allows the same bracket to work on all supported...
    Extremely Adjustable - Mount them wide, tight, high, low or anywhere in betweenHeavy Duty Construction - 1/8" thick laser cut steel to support hella horns, lights, etc
    $34.00
  • GrimmSpeed® - Engine Coolant Radiator Shroud
    GrimmSpeed®Engine Coolant Radiator Shroud (TBG114031.1)
    0
    # mpn4890316996
    Engine Coolant Radiator Shroud by GrimmSpeed®. Finish: Black. To keep your engine cool and improve your vehicle's performance, this product is just the right solution. Manufactured from high-quality materials, it will surely provide...
    High quality at an affordable priceExpertly made from premium materials
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114020.2)
    0
    # mpn4889742932
    Lightweight Pulley Cover (TBG114020.2) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114020.3)
    0
    # mpn4889742865
    Lightweight Pulley Cover (TBG114020.3) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114026.1)
    0
    # mpn4889742862
    Lightweight Pulley Cover (TBG114026.1) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114020.1)
    0
    # mpn4889742856
    Lightweight Pulley Cover (TBG114020.1) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114026.3)
    0
    # mpn4889742852
    Lightweight Pulley Cover (TBG114026.3) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114019.3)
    0
    # mpn4889742850
    Lightweight Pulley Cover (TBG114019.3) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Lightweight Pulley Cover
    GrimmSpeed®Lightweight Pulley Cover (TBG114027.3)
    0
    # mpn4889742831
    Lightweight Pulley Cover (TBG114027.3) by GrimmSpeed®. Tired of being teased for your boring engine bay? Did you replace your stock TMIC with one that doesn't facilitate the use of the stock engine cover? This cover mounts securely in...
    Laser Cut Heavy Duty Aluminum - perfect fit with a sleek but heavy duty lookMachined Aluminum Mounts for a clean look and corrosion resistance
    $79.00
  • GrimmSpeed® - Catted J-Pipe/Downpipe
    GrimmSpeed®Catted J-Pipe/Downpipe (007103)
    0
    # mpn4497962099
    Catted J-Pipe/Downpipe by GrimmSpeed®. With the 2015 J-Pipe, the devil is truly in the details and the product development team here at GrimmSpeed has taken the time necessary to knock each of those details out of the park. As a result,...
    Innovative Turbo Flange Design - 1/2" thick while retaining all OEM bracketsOne-Piece Tube - Ensures exact fitment, robust construction and ease of installation
    $829.00
  • GrimmSpeed® - Downpipe to Catback Gasket
    GrimmSpeed®Downpipe to Catback Gasket (Gasket-072001)
    0
    # mpn4497962077
    Downpipe to Catback Gasket by GrimmSpeed®. 1 Piece. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...
    Expertly made from sturdy materialsMade to help enhance the performance of your vehicle
    $14.00
  • GrimmSpeed® - Cold Air Intake Kit
    GrimmSpeed®Cold Air Intake Kit
    0
    # sp184066
    Cold Air Intake Kit by GrimmSpeed®. Make your engine function at its full efficiency by choosing from their comprehensive selection of top-grade performance air intake parts. Crafted by the industry-leading professionals who use the...
    Engineered to help upgrade your vehicle’s power and overall performanceManufactured from high-grade materials for long-lasting service in various conditions
    $349.00
  • GrimmSpeed® - Exhaust Systems
    GrimmSpeed®Exhaust Systems
    0
    # sp159372
    Exhaust Systems by GrimmSpeed®. With so many catback options available, their goal was to create a unique, refined sound in an extremely high quality system. We've been casually referring to it as the gentleman's catback around the...
    Custom dual outlet mufflers - dual perforated tubes offer quieter, more refined tone304 Stainless Steel construction - genuine American 304SS material to withstand the elements and abuse
    $1,349.00 - $1,459.00




Launched in 2006 in Minneapolis, Minnesota, GrimmSpeed is a small group of highly dedicated automotive enthusiasts who are committed to providing car junkies with innovative and precision-engineered products. The brand was started in a small garage from making premium-quality aftermarket parts for Subaru. As GrimmSpeed grew, it began manufacturing products for Mitsubishi, MazdaSpeed, and Hyundai, and since then has developed a comprehensive portfolio, covering a wide variety of vehicles. From power packages to exhaust systems and brakes, GrimmSpeed ticks all the boxes when it comes to a mind-blowing upgrade.

Driven by an ongoing thirst for innovation and never-ending passion for everything automotive, GrimmSpeed has turned into a dream car parts business. The brand takes great pride in years of ingenious manufacturing experience, design and engineering expertise, and profound knowledge in the anatomy of exhaust systems, boost controllers, gaskets, pullies, and anything in-between. Thanks to state-of-the-art technology and roll-up-their-sleeves attitude, GrimmSpeed vigorously stepped into the world of aftermarket to power the vehicle’s of today and tomorrow and succeed.

GrimmSpeed has carved a niche for itself as an indisputable leader on the aftermarket arena by creating top-of-the-line car tune-ups worthy of the finest cars in the world. Innovation is the backbone of everything the brand does. GrimmSpeed gathered a team of skillful designers and engineers who truly live, love, and breathe the world of cars. They’re masters of automotive crafts with unwavering commitment to technology, which allows them to create out-of-the-box products through using better materials, thicker flanges, thicker piping, or anything in-between that will keep them at the competitive edge. At GrimmSpeed, they’re passionate about making the products that really work. They don’t makes copy cats, but strive to make a fine work of art through using completely new ideas or innovating current products on the market shelf.

Leading the pack in design and technology, GrimmSpeed has set the standard of excellence in quality and dependability. The brand showcases an innovative line of performance exhaust systems, including everything from complete cat-back exhaust systems to external wastegate uppipes, downpipes and manifold crosspipes to exhaust adapters to adjust your vehicle’s sound and performance from mild to wild. GrimmSpeed also offers such parts as phenolic thermal spacers, exhaust manifold to turbo gaskets, Y-pipe gaskets, and more. They last longer than OEM and will give you an added performance boost. The brand is also proud to introduce its over-the-top intakes with high-flow CNN low-bent angle and laser cut aluminum tubes to minimize restriction and boost performance, protected MAF sensor placement for accurate reading and protection from heat.

GrimmSpeed showcases a variety of well-rounded power packages, including all the components needed for having your your ride tuned up to massive performance gains. With these kits, you can get tremendous boosts in horsepower and torque and superior boost control, as well as a more aggressive street presence. You can get a complete tuning kit, or a separate upgrade, such as an electronic boost controller with millions of miles of real world testing and an innovative mounting solution to build your boost more quickly and more efficiently. It’s a must-have especially when it comes to professional tuning that’s trusted by tens of hundreds of tuners around the world and appreciated by car aficionados. GrimmSpeed’s line of performance intercooler parts includes top-mount intercoolers, charge pipe kits, turbo outlet hoses, dyno ducts to feed your beast under the hood with power-building air and make it run cooler and more efficiently. They’re perfect for a high-performance vehicle, hot environments and regularly overheating engines, providing more pulling power and maximum cooling.

GrimmSpeed Reviews

1 review
5 of 5
No More Power Dip
The installation was actually really easy and fun, due to just how beautiful the intake looks in the engine bay. The power dip in 3rd gear was completely gone, the car feels almost like a different animal now, definitely recommend.
Posted by Brandon (Maryville, TN) / June 11, 20202013 Scion FR-S
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