Black Friday Sale 2023

52mm mechanical 30psi boost pressure gauge.Featuring dimmable LED backlighting, the smoked lens is dark when off and comes alive when the ignition ...

The GFB 44mm Wastegate has been designed to cope with the brutal conditions of extreme exhaust temperatures, the EX44 Wastegate features not only a...

Designed to cope with the brutal conditions of extreme exhaust temperatures, GFB Wastegates features not only a huge flow capacity, but also a comp...

Designed to cope with the brutal conditions of extreme exhaust temperatures, GFB Wastegates features not only a huge flow capacity, but also a comp...

40mm (1 1/2 inch) Fuel Pressure Gauge, silicone fluid filled for stable readings and long life. Features a clear and easy-to-read dual scale pressu...

The VTA is a performance blow-off valve solution for Audi, VW, Skoda and SEAT vehicles with an electronic factory diverter valve. If you want sou...

You asked, we delivered. Many times we have been asked for a replacement trumpet that gives a different sound, and here it is. The ability to c...

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

Part Number: 057033 The GrimmSpeed Mitsubishi EVO Boost Control Solenoid is designed to work with your factory computer (requires tuning). It will ...

Part Number: 040004 Have you ever thought to yourself, ""Man, Trent, you've got all of these awesome parts but how are you supposed to let your cre...

Part Number: 060089 At GrimmSpeed we know that not everyone is ready for one of our full aftermarket intake systems, but still wants a safe and eas...

Part Number: 038007 Each knob is machined from Delrin/Duracon, an extremely durable thermoplastic, right here in Minnesota. Each knob weighs 120g, ...

Part Number: 020099 Replace your worn or leaking OEM donut gasket with this fiber-reinforced graphite donut gasket at a fraction of the cost. Appli...

Part Number: 057041 If you've been in the Subaru game for long, you're probably well aware that a 3-port Boost Control Solenoid (BCS) is considered...

Part Number: 057027 The GrimmSpeed™ MazdaSpeed 6 Boost Control Solenoid is designed to work with your factory computer (requires tuning). It will n...

Part Number: 057002 GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid for available for all turbo S...

Part Number: 040005 When it comes to wiring the Hella Horns that are mounted to your beautiful GrimmSpeed BroTie, we have you covered. After some t...

Part Number: 040026 When it comes to wiring the Hella Horns that are mounted to your beautiful GrimmSpeed BroTie, we have you covered. After some t...

Part Number: 001001 Subaru supplies its turbo owners with a tiny little crosspipe from the factory. 50% of your exhaust gasses are passing through ...

Part Number: 095015BK In our opinion, the OEM Subaru crank pulley has been a cause for concern ever since its original design. It is relatively hea...

Part Number: Gasket-024001 An amazing 7 LAYERS! GrimmSpeed™ OEM Style Gasket, OEM quality without the high OEM price. At GrimmSpeed™ we have worked...

Part Number: 6593 HARDENED rubber bushing made with high strength and anti-crack rubber material, solid steering response and driving suspension fe...

Part Number: 6756 Rear traction rod made of unique high density steel, provide excellent stability during high speed driving or hard cornering . Ma...

Hawk Performance Blue 9012Designed as an entry level endurance compound, there's nothing second-string about Hawk's Blue 9012 race compound. Easier...