1. Car & Truck Shift Knobs – USED Parts
  2. sku: 5740225407109533
  3. GRIMMSPEED 380001

GRIMMSPEED 380001 Grm Knobs 850016028662

380001 Grimmspeed Grm Shift Knobs

( Brand: Grimmspeed ), ( Manufacturer Part Number: 380001 ), ( Type: Interior Accessories ), ( Manufacturer Warranty: 1 Year Manufacturer Warranty ), ( Authorized Dealer: Yes ), ( Height: 3.200 ), ( Legal Disclaimer: Your Local Laws Before Purchasing ), ( Photo Disclaimer: For Reference Only, See Item Details ), ( UPC: 850016028662 )

Review GRIMMSPEED Grm Shift Knobs

Introducing the Grimmspeed GRM Knobs, a must-have accessory for any enthusiast looking to add a touch of style and functionality to their Subaru engine bay. These high-quality knobs are designed specifically for Subaru applications and are a direct replacement for the factory plastic coolant temperature and boost pressure caps.

The Grimmspeed GRM Knobs are meticulously crafted from billet aluminum, lending an aesthetically pleasing and durable upgrade to your engine components. Each knob features a large, easy-to-read dial with clear markings for accurate readings. The knobs are anodized in a sleek matte black finish, providing both a modern and timeless look that complements any engine bay.

These Grimmspeed knobs offer more than just an upgrade in appearance. They are designed with functionality in mind, featuring a 1/4 turn locking mechanism that ensures secure engagement, preventing any unwanted movement or leaks. The large, textured grip makes adjusting the coolant temperature or boost pressure a breeze, even with gloves on.

The Grimmspeed GRM Knobs are a direct replacement for the factory caps and are compatible with Subaru engines equipped with electronic wastegate actuators, including the EJ, FA, and FB series engines. Installation is straightforward and can be completed in a matter of minutes using standard hand tools.

Investing in the Grimmspeed GRM Knobs is an excellent choice for those seeking to enhance both the appearance and functionality of their Subaru engine bay. With their durability, ease of use, and sleek design, these knobs are sure to be a valuable addition to any Subaru enthusiast's collection.

The Grimmspeed 380001 GRM knobs are aftermarket boost controllers designed for Subaru and Mitsubishi turbocharged engines. These knobs offer a number of benefits and potential drawbacks for enthusiasts looking to fine-tune their engine's boost control.

Pros:

1. Increased control: The Grimmspeed GRM knobs allow for precise adjustment of boost pressure, providing the ability to optimize engine performance for various driving conditions.

2. Improved drivability: By allowing for finer adjustments of boost pressure, the GRM knobs can help improve throttle response and overall drivability.

3. Customization: The ability to manually adjust boost pressure provides a level of customization that may not be available with factory boost control systems.

4. Durability: Grimmspeed is known for producing high-quality aftermarket parts, and the GRM knobs are no exception. They are built to withstand the rigors of high-performance driving.

Cons:

1. Complexity: Manually adjusting boost pressure requires a certain level of knowledge and experience, and may not be suitable for all enthusiasts.

2. Cost: The Grimmspeed GRM knobs are more expensive than factory boost controllers or other aftermarket options.

3. Installation: Installing the GRM knobs requires some mechanical knowledge and the ability to work on the engine.

4. Risk: Manually adjusting boost pressure carries some risk, as setting the boost too high can lead to engine damage or even failure.

Conclusion:

The Grimmspeed 380001 GRM knobs offer a number of benefits for enthusiasts looking to fine-tune their engine's boost control. However, they also come with some drawbacks, including the need for mechanical knowledge and experience, as well as the potential for increased risk. Ultimately, whether or not the GRM knobs are right for you will depend on your level of experience, your goals for your vehicle, and your budget.

Recommendation:

If you have a good understanding of engine performance and are comfortable working on your vehicle, the Grimmspeed 380001 GRM knobs can be a great investment. They offer a high level of customization and can help improve overall performance and drivability. However, if you are new to engine tuning or are looking for a more straightforward solution, you may want to consider other options, such as a programmable engine controller or a factory boost controller.

Details:

GrimmSpeed Shift Knob Stainless Steel - fits Subaru 5 Speed and 6 Manual Transmission Black. Photos are for reference only. Actual product may differ from the item shown in photograph.

part #: 380001 prices

  • $63.96-$82.90

specifications shifterfreddie:

  • brand: Grimmspeed
  • mpn: 380001
  • type: Interior Accessories
  • manufacturer warranty: 1 Year Manufacturer Warranty
  • authorized dealer: Yes
  • height: 3.200
  • legal disclaimer: Your Local Laws Before Purchasing
  • photo disclaimer: For Reference Only, See Item Details
  • upc: 850016028662

payments shifterfreddie:

  • other
  • credit card: Visa
  • wallet: Google-pay

general shifterfreddie:

  • condition: New
  • Car Truck Parts Accessories > Interior Parts Accessories > Shift Knobs

returns shifterfreddie:

  • time: 30 Days
  • paid by: Buyer
  • policy: Returns Accepted

shipping shifterfreddie:

  • cost: $0.00
  • type: Fixed
  • transit: 2-6 Days
  • class: Expedited
  • service: Expedited

offer shifterfreddie:

  • sold: 0
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • started: April 8, 2025

seller shifterfreddie:

  • # reviews: 175279
  • city: Cedar Park, Texas
  • rating: 97.9%
type: interior accessories, manufacturer warranty: 1 year manufacturer warranty, authorized dealer: yes, legal disclaimer: your local laws before purchasing, photo disclaimer: for reference only, see item details,
category: auto parts > car truck parts accessories > interior parts accessories > shift knobs, height: 3.200, sku: 5740225407109533,

Grimmspeed 380001 Is Similar To:

shifterfreddie logo
5 offers $63.96–$82.90 USD
  • Offer #1: $82.90 price + $0.00 shipping estimate = $82.90* total. Each shift knob also receives laser etched GrimmSpeed logos around the base. Manufacturer's Part Number:.FREE SHIPPING
  • Offer #2: $63.96 price + $0.00 shipping estimate = $63.96* total. GrimmSpeed Weighted Shift Knob Stainless Steel Black M12x1.25 Manual Subaru.FREE SHIPPING
  • Offer #3: $75.00 price + $8.00 shipping estimate = $83.00* total. Weighing in at 675g, this knob will add an aggressive weighted feel to each gear shift, allowing you to shift faster and more smoothly than ever before. GrimmSpeed Stainless Steel (Black) Shift Knob - 6 Speed Manual Transmission.+$8.00 shipping
  • Offer #4: $108.99 price + $0.00 shipping estimate = $108.99* total. GrimmSpeed Shift Knob Stainless Steel - Subaru 5 Speed and 6 Speed Manual Transmission - Black.FREE SHIPPING
  • Offer #5: $75.00 price + $9.75 shipping estimate = $84.75* total. These are designed to fit the both 5 and 6 speed manual Subaru shifters right out of the box (M12x1.25), but if you'd like to hold the shift boot up on your 5 speed setup, you'll want to add our Shift Boot Retainer. Each shift knob is also laser etched around the base with the GrimmSpeed logo so that you know it's the real deal.+$9.75 shipping

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