Click to zoom in
Add Real Weight to Every Shift
The GrimmSpeed Shift Knob Stainless Steel replaces the light, hollow factory knob with a solid piece of machined stainless steel that transforms the feel of every gear change. GRMGRM038006 is one of the most popular upgrades in the Subaru aftermarket because it delivers an immediate, noticeable improvement in shift feel without any complicated installation. Machined from solid 304 stainless steel and finished with a laser etched GrimmSpeed logo around the base, GRMGRM038006 gives drivers a hybrid grip shape that feels natural whether shifting overhand or with a side grip. At 675 grams, the added mass smooths out each shift and makes fast, deliberate gear changes easier to execute.
Key Features
- Machined from solid 304 stainless steel for a durable, heavyweight feel
- Weighs 675 grams to add substantial heft to every shift
- Hybrid grip design comfortable for overhand or side grip shifting styles
- Laser etched GrimmSpeed logo around the base
- M12x1.25 universal thread pitch
- Designed and machined in Minnesota
Specifications
| Detail | Value |
|---|---|
| SKU | GRMGRM038006 |
| Manufacturer Part Number | 038006 |
| Material | 304 Stainless Steel |
| Thread Pitch | M12x1.25 |
| Weight | 675 grams |
| Finish | Raw Stainless Steel |
| UPC | Not published by manufacturer |
What's Included
- 1 GrimmSpeed Shift Knob Stainless Steel (GRMGRM038006)
About GrimmSpeed
GrimmSpeed is a Minnesota based performance company that designs and manufactures parts specifically for Subaru and other turbocharged platforms. Known for precision machining and rigorous testing, GrimmSpeed builds components like GRMGRM038006 to hold up to real world driving while improving the everyday feel of the vehicle.
FAQ
What is the 038006?The 038006 is the GrimmSpeed Shift Knob Stainless Steel, a machined stainless steel shift knob designed to fit manual Subaru shifters using an M12x1.25 thread.
Does GRMGRM038006 fit both 5 speed and 6 speed transmissions?Yes, GRMGRM038006 threads onto both 5 speed and 6 speed Subaru manual shifters right out of the box.
Do I need any additional parts for a 5 speed installation?For 5 speed applications, a GrimmSpeed Shift Boot Retainer is recommended to hold the shift boot in place, sold separately.
Is GRMGRM038006 compatible with non Subaru vehicles?Since it uses a universal M12x1.25 thread, it can fit other vehicles with the same thread pitch, including some Ford platforms.
How much does the knob weigh?The stainless steel knob weighs 675 grams, adding significant heft compared to the factory plastic knob.
Is installation difficult?No, installation only requires unscrewing the factory knob and threading on GRMGRM038006 by hand.
What tools are needed to install it?No tools are required. The knob threads directly onto the shifter shaft.
Does the knob include a warranty?GRMGRM038006 is covered by GrimmSpeed's standard limited warranty against manufacturing defects.
Install Instructions
- Park the vehicle and engage the parking brake with the transmission in neutral.
- Grip the factory shift knob firmly and unscrew it counterclockwise from the shifter shaft.
- If installing on a 5 speed model and using a shift boot retainer, slide it into place first.
- Thread GRMGRM038006 clockwise onto the shifter shaft until snug.
- Check that the knob is tight and does not spin freely before driving.
Interior Parts & Accessories
Interior parts and accessories for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop gauges and gauge pods, dash and interior trim, shift knobs and shifters, steering wheels, seats and race seats, seat belts and harnesses, roll cage components, floor mats, programmers and tuners, and racing safety gear for Hellcat, Trackhawk, TRX, HEMI, LS, LT, Coyote, and EcoBoost platforms. Every interior product is filterable by year, make, model, trim, and application so the correct part ships the first time. Black Ops Auto Works carries 5,234 interior SKUs across dash trim, seating, safety, electronics, and tuning categories. What This Category Covers Interior parts and accessories span daily comfort upgrades and dedicated racing safety equipment. This collection ranges from simple dash badges and floor mats to full roll cage components, race seats, and harness bars for track-prepped builds, along with electronic tuning products like programmers and performance monitor...
View Interior Parts & Accessories Products
Shift Knobs
Shift knobs, weighted knobs, short-shifter knobs, shift boot retainers, and manual-transmission interior upgrades for Subaru, Honda, Toyota, Mazda, Ford, Nissan, BMW, Volkswagen, and other enthusiast platforms are stocked at Black Ops Auto Works. Shop aluminum, stainless steel, Delrin, leather, carbon-fiber, tall, short, spherical, teardrop, and platform-specific shift knobs with the correct thread pattern and fitment. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 248 shift-knob SKUs across thread patterns, materials, weights, shapes, boot retainers, shifter components, and interior finishes. What Shift Knobs Cover A shift knob changes the primary hand contact point for a manual transmission. This collection includes vehicle-specific and universal designs plus compatible short-shifter components and boot-retainer parts for a clean finished installation. Thread Patterns and Fit...
View Shift Knobs Products
Shifters & Components
Shifters and components for manual and automatic transmission platforms are stocked at Black Ops Auto Works. Shop short shifters, shift knobs, shift boots, shifter cables, shifter bushings, solid shift joints, and detent kits for Subaru WRX and STI, Honda, Acura, Ford Focus ST and RS, and Jeep Wrangler platforms. Every product is filterable by thread pitch, transmission type, and vehicle year, make, and model so the correct part ships the first time. Black Ops Auto Works carries 470 shifter SKUs across knobs, boots, cables, and short shift hardware. What This Category Covers Shifter upgrades improve throw distance, shift feel, and interior appearance for manual transmission platforms, while replacement cables, boots, and bushings restore worn automatic and manual shift linkage to factory-correct operation. Short Shifters and Shift Joints Short shift kits reduce shifter throw distance for quicker, more direct gear changes. Solid shift joints replace the factory rubber bushing in ...
View Shifters & Components Products