All The Quickness, A Splash Of Color
The GRMGRM380003 GrimmSpeed Stubby Shift Knob in stainless steel with a red finish delivers the same shortened, quick throw profile as the black version with a bolder look. The reduced height brings the shifter closer to hand while the solid stainless construction adds meaningful weight over the factory plastic knob. Each knob is laser etched with the GrimmSpeed logo and threads directly onto M12x1.25 shifters, fitting both 5 speed and 6 speed Subaru manual transmissions without any modification.
Key Features
- Shortened stubby profile reduces overall shift lever height for a quicker feel
- Solid stainless steel construction adds weight over the factory knob
- Laser etched GrimmSpeed logo around the base
- Threads directly onto M12x1.25 shifters, fitting 5 speed and 6 speed Subaru transmissions
- Red textured powder coat finish resists wear from daily use
- Simple installation, just unscrew the factory knob and thread this one on
Specifications
| Detail | Value |
|---|---|
| MPN | GRMGRM380003 |
| Material | Stainless Steel |
| Finish | Red textured powder coat |
| Thread Pitch | M12x1.25 |
| Style | Stubby, shortened profile |
| UPC | Not published by manufacturer |
What’s Included
- GrimmSpeed stainless steel stubby shift knob
About GrimmSpeed
GrimmSpeed is a Minnesota based manufacturer known for designing and building performance and dress up parts for the Subaru platform. Every GrimmSpeed product is engineered in house and tested on real cars before it reaches the shelf, which is why enthusiasts trust the brand for parts that fit right and hold up to daily driving and track use alike.
FAQ
What is the GRMGRM380003?
It is the GrimmSpeed Stubby Shift Knob in stainless steel with a red finish, sized for M12x1.25 shifter threads.
What makes this different from the standard shift knob?
The stubby version has a shortened profile that reduces the overall shift lever height for a quicker feeling throw.
Will this fit my Subaru manual transmission?
Yes, it is designed to fit 5 speed and 6 speed Subaru manual shifters right out of the box.
Does the stubby shape make shifting feel different?
Many drivers find the shorter height combined with the added stainless weight creates a quicker, more direct shift feel.
Can I use this on a 5 speed shifter without issues?
Yes, though you may want to add a shift boot retainer to keep the boot seated properly on a 5 speed setup.
Does this fit non Subaru vehicles?
Since the thread is M12x1.25, it can fit other vehicles that share the same shifter thread pitch.
What finish options are available?
This stubby knob is available in a red textured powder coat as well as a black finish option.
Is the GrimmSpeed logo visible on the knob?
Yes, each knob is laser etched with the GrimmSpeed logo around the base.
Install Instructions
- Unscrew the factory shift knob from the shifter shaft.
- Thread the GrimmSpeed stubby shift knob onto the shifter shaft in the same direction.
- Hand tighten until snug against the base of the shifter.
- If running a 5 speed setup, install the shift boot retainer to keep the boot seated properly.
- Confirm the knob is secure before driving.








