Products

The simple & essential mod for 30% quicker boost! Using GFB’s TMS technology the Mach 2 can help return the engine to peak boost up to 30% fast...

NEW MACH 2: ENTRY LEVEL TMS THE SIMPLE & ESSENTIAL MOD FOR 30% QUICKER BOOST Utilising Proven Tms Technology To Ensure Dependable Boost Holding...

The Gfb Vag Mk5/6 Boost Gauge Tap Provides A Neat & Easy Manifold Pressure Reference Port For 2.0 Tsi/fsi Engines. 10 second installation! Sin...

The GFB VAG 1.2/1.4TSI Boost Gauge Tap Provides A Neat & Easy Manifold Pressure Reference Port. Easy To Install With No Tools And Is Completely...

This Hose Plug can be used for blocking off unused plumb-back hoses with full atmosphere-venting blow-off valves, In order to have a full recircula...

On the surface it may look like just another dual-port blow-off valve, but the Respons is actually much more than that. Featuring GFB's patented ve...

On the surface it may look like just another dual-port blow-off valve,but the Respons is actually much more than that. Featuring GFB's patented ven...

Fits all Mach 2, Respons TMS, and Deceptor Pro II valves. This softer spring is supplied standard in all Mach 2 valves that are fully recirculate...

This is the standard spring that is supplied in all Respons TMS and Deceptor Pro II valves, and is an optional extra for all Mach 2 valves when b...

In the race to create the most compact and highest flowing blow-off valve, GFB’s SV52 pulls ahead of the pack. Standing only 86mm tall (including t...

If you want sound with your performance (or performance with your sound!), GFB’s VTA delivers just that! By combining the proven performance benef...

If you want sound with your performance (or performance with your sound!), GFB’s VTA delivers just that! By combining the proven performance benef...

VTA T9468 DV+ Performance, Blow Off Valve Sound! The VTA is a performance blow-off valve solution for Ford Mustang Ecoboost vehicles with an electr...

VTA T9430 GREAT BLOW-OFF SOUND, CLIPS IN WITH NO TOOLS REQUIRED! The Latest Addition To The VTA Range Is A Blow-Off Valve Designed Specifically For...

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...

EX44 Inlet Weld-On Flange

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: 121028 GrimmSpeed has always been on the forefront of innovation when it comes to well-engineered functional parts for your vehicle. W...

Part Number: 060053 For years you've been asking us for intakes, and for years we've silently worked to create a solution that sets itself apart fr...

Part Number: 060051 For years you've been asking us for intakes, and for years we've silently worked to create a solution that sets itself apart fr...

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

1Part Number: Gasket-034001 Rejoice 3-Bolt Up Pipe owners, you finally have a great replacement gasket for your up pipes! We listened to your wants...

Part Number: 008007 A full External Wastegate (EWG) set-up consists of a EWG up-pipe and a wastegate. The EWG set-up creates better turbo spool bec...

Part Number: 099012 Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has ju...

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

Part Number: 057019 The GrimmSpeed Mitsubishi EVO Boost Control Solenoid is designed to work with your factory computer (requires tuning). It will ...

Part Number: 112000.1 GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one ...

Part Number: 112000.2 GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one ...

Part Number: 112000.3 GrimmSpeed engine dress-up pieces have been extremely popular with Subaru owners over the years, but there’s always been one ...

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: 126024.1 The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the ma...

Part Number: 126024.2 The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the ma...

Part Number: 126022.1 The long-awaited GrimmSpeed Bypass Valves are here! Our passion for building the most robust, best-performing parts on the ma...

Part Number: 125027 One of the biggest complaints we’ve heard from 2015-21 WRX owners has to do with cracks forming in their OEM plastic turbo inle...

Part Number: 125026 One of the biggest complaints we’ve heard from 2015-21 WRX owners has to do with cracks forming in their OEM plastic turbo inle...

Part Number: 070033 With so many catback options available, our goal was to create a unique, refined sound in an extremely high quality system. We'...

Part Number: 070045 With so many catback exhaust options available, our goal was to create a unique, refined sound in an extremely high-quality han...

Part Number: 060060 Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake system for the 2015+ W...