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Engineered for Speed. Built for Precision.

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Erik Grassauer — Founder of DARKMATTERX

"Growing up watching my brother wrench on cars, I was hooked on the "why" behind every bolt and gear. That curiosity fueled my passion for automotive innovation and led me to found DARKMATTERX

-where American-made precision transforms the driving experience. From dishwasher to business owner, I'm a Veteran dedicated to serving others through creativity and craftsmanship. At DARKMATTERX, we don't just build shifters; we redefine connection to the road. Join us in pushing performance further."

🔥 Black Friday Sale: Up to 50% OFF.   Join waitlist now for early access.

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ULTIMATE SHIFTING EXPERIENCE

INTRODUCING THE ALL NEW DM-1 AND DM-2

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Shift with Precision. Drive with Power.

Discover performance-engineered shifters and accessories that give you the edge on the street and the track.

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Real Feedback from Real Drivers

Built for precision. Proven by drivers who demand more from every shift.

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I want to start by pointing out how generous Eric is. I originally bought a used prototype shifter off Facebook Marketplace—not something meant for cars since prototypes are mainly for testing. Once Eric found out, he immediately told me to take it off and sent me a brand-new shifter with express delivery.


Even though there was a fee for the new shifter, it was never Eric’s fault that I bought one from the marketplace. In fact, I believe he genuinely wanted me to experience the real deal and see what Dark Matter is all about.


And let me tell you—the shifter is a complete game changer. It completely removes the cable setup, the shifts feel incredibly crisp, and the feedback makes driving so much more fun. It’s honestly the closest thing you can get to the STI shifting experience.


I have nothing but great things to say about both the pro

Parker Stuart

Work_is_in_my_blood

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By far one of the best shifter feels! The fact that I can adjust how I want the throws to be while driving is very cool! It just blows my mind how much of a difference it is compared to stock! I highly recommend them for anyone that’s able to get one!!!

Jeremy Yeatman

Jays_sti

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I have a 94 WRX from Japan whose shifter was on the outs, the bushings were shot, and I knew I needed a replacement. At this point I reached out to Erik to see if he thought the new one would fit into the GC chassis, and he said it would!

 

I ordered the Shifter during its production and the company kept us informed the whole way through and before the unit shipped Erik reached out to confirm the order and the unit arrived within a few days after that! The unit is extremely well built and solid, install was simple and straight forward with no issues to speak of.

 

The unit was an extremely import upgrade shifts are smooth crisp and quick, the shifter wants to go from 2-3 and 3-4 effortlessly and makes driving it very enjoyable. This is one of the best upgrades that I have done to my car after suspension work!!

Josh Allison

@silix_wrx_aprilia

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I absolutely love the shifter… nothing else compares to it. It’s nochy it’s smooth it’s just awesome. Gets rid of all that shifter play all of us subi guys dislike. Highly recommend all of there products!

Jacob

Thatoregonsti

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This is hands down the best shifter on the market! Nothing can compare, I have put lots of different variations of shifter parts on to try and make the shifting experience more enjoyable. The DMX shifter will save you time and money!

 

The throw is absolutely immaculate, never miss a shift agin. Super crisp gear changes, short throw`s, its made of extremely high quality parts, and its made right here in America! Do yourself a favor and make the upgrade, you will not regret it!

Chris Lerma

2_illegal_wrx

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Got the DM-2 for my Forester Diesel. Fits perfectly, and also works with the Cobb short shift plate. They need to be sold in pairs; one for your car, the other on the Mantle Piece (or the Pool Room, as we say here in Australia).

It's definitely a 'Drivers' shifter, no matter what car it's in. Make's the daily drive more enjoyable. Reverse, is particularly easier to select. And with the odd gear ratios that Subaru chose for the Diesel; the DM-2 enables later (and quicker), shifting; which improves the cars driveability into corners, and round-a-bouts.

Overall, it means we get down to the Dog Park, super quick. And when I tell people I have a DM-2, they all want to have a play with my knob 😂

#EE20 #Subaru Diesel #Forester DieselGot the DM-2 for my Forester Diesel. Fits perfectly

Adrian Mong

2Dogs

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Experience precision engineering in every shift.

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