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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.
Related Parts
- GrimmSpeed Shift Knob Delrin Subaru 5 Speed and 6 Speed Manual Transmission
- GrimmSpeed Stubby Shift Knob Stainless Steel Raw M12x1.25
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.
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