GrimmSpeed Master Cylinder Brace

Part #: GRM 091016
MSRP: $104.99
( 34 reviews )


   In Stock: Ships the Same Day
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This product is covered by our
RallySport Guarantee
No questions asked 30 day return policy


Brand: Grimmspeed
Color: Black
Installation Hardware Included: Yes
Location: Master Cylinder
Material: 12L14 Carbon Steel
Mfgr. Warranty: 2 Years
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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Subaru Impreza
WRX STI 2004, 2005, 2006, 2007WRX STI Limited 2007WRX 2002, 2003, 2004, 2005, 2006, 2007WRX TR 2006, 2007WRX Limited 2006, 2007Base 1993, 1994, 1995L 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001LS 1993, 1994LX 1995, 1996Outback 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004Brighton 1996, 1997RS 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005TS 2002, 2003, 2004Outback Sport 2005, 2006, 20072.5i 2006, 2007
Subaru Legacy
Touring 1994GT 1994, 1996, 1997, 1998, 1999L 1994, 1995, 1996, 1997, 1998, 1999Alpine Sport 1994Sun Sport 1994Outdoor 1994LS 1994, 1995, 1996LSi 1994, 1995, 1996, 1997Sport 1994Base 1995Brighton 1995, 1996, 1997, 1998, 1999Outback 1995, 1996, 1997, 1998, 1999Outback Limited 1997, 1999GT Limited 1998L 30th Anniversary 1999Limited 30th Anniversary 1999SUS 30th Anniversary 1999
Subaru Forester
X 2003, 2004, 2005, 2006, 2007, 2008XS 2003, 2004, 2005XT 2004, 2005XS L.L. Bean Edition 2005XT Premium 2005X L.L. Bean Edition 2006, 2007, 2008XT Limited 2006, 2007, 2008Sports 2.5 X 2008Sports 2.5 XT 2008
Saab 9-2X
Linear 2005Aero 2005, 20062.5i 2006

Pressing Subaru brakes leaves a lot to be desired, especially when every inch counts in a race or when you are depending on them to save your life! The nasty firewall flex is the source of this performance flaw in Subaru’s that we have come to solve.

GrimmSpeed has engineered the most simple to install and best performing master cylinder brace on the market. The GrimmSpeed Master Cylinder Brace takes a beating and comes back for more!

Crafted from CNC laser cut 12L14 with multi-point welded fabrication. It is the Abrams Tank of master cylinder braces touting 5 factory mounting points, the most available from any brace. Powder coated black this brace will outlive your car and win you some style points to boot. Most importantly this brace kit will kill your wimpy pedal feel and give you the immediate and tight response that your performance car deserves and needs when you hit the track or rally. This brace will give you the confidence similar to that of SS braided brake lines with precision stopping. Not to mention street driving just got a whole lot more fun!

REVIEWS ( 34 )


Verified Purchase
Solid feel
j-bugeye 11 months ago
This brace did make my pedal feel more firm. Install was straight forward. If I remember correctly, the directions for my '02 wrx wagon suggested the long stud, but the short one was a better fit. Noticeable 'feel' difference.
Verified Purchase
Fixed my brake pedal woes
04_sti 1 year ago
Thanks Grimmspeed for another great product. The fit and finish is typical grimmspeed quality, but its unfortunate you dont get to see it really. The brace fixed my pedal pressure problems, no more pumping the brakes! Before the brace I'd have to pump the brakes occasionally, which led to some close calls while braking at high speeds. Since installing, i have no fear braking from 100+ and the pedal pressure is much more consistent. I got a good deal on it a few months back and its been worth every penny. Buy one if you dont have it! Note: This was installed on a 2004 sti.
Verified Purchase
great product
waynewhitfield82.ww13457 2 years ago
This thing felt sturdy right out of the box, and was very easy to install with the motor not in the car lol. Looks great and stealthy once installed. Love the product and look forward to installing more grimmspeed products on my car.
Verified Purchase
Easy Brake Upgrade
tim95211 2 years ago
2004 WRX install wasn't too bad. I replaced my fuel filter while installing to give myself a little extra room. Takes some of the sloppiness out of the braking. Definitely worth the money.
Verified Purchase
Good product, good vendor
Chevywt4life42161 2 years ago
I bought the GrimmSpeed Master Cylinder Brace for my 00 GC. I did not like that it came without paper install instructions. You would think they could have an option to include them because not everyone has smartphones an tablets. I also could not get the supplied bolt to thread up right on my fender side. I used one of my old Subaru bolts and it worked no problem. The looks and build quality of the main piece are top notch. Driving impressions were noticeable more in city/heavy traffic. Heavy breaking and precision stops were greatly improved. It got rid of all noticeable slop with-in the pedal. Remember that with this brace it will not improved your cars physical breaking performance. That said it will allow you to stop better. I am also running SS brake lines which has a same feel but enhances pedal feel and performance.


  • AnswerQ: RHD?   Subie22 1 year ago

    Will this work with a RHD 99 Subaru Impreza wrx?

    • A: This brace does not fit right hand drive cars.

      Zach G. 1 year ago

    • A: Unfortunately these do not work on RHD cars. Mike

      sales559bb8b6bb86418e5b8c258d 1 year ago

  • AnswerQ: WRX wagon  cruzmissle74852 4 years ago

    Will this fit a 06 WRX Wagon?

    • A: This master cylinder brace is confirmed to fit the 06 WRX wagon/sedan. You can find a list of confirmed applications on the right side of this page.

      Zach G. 4 years ago

  • AnswerQ: Fitment  tupiduck94761 5 years ago

    Can this fit a right hand drive vehicle where the master cylinder is on the right?

    • A: It can not. Reason is that Right Hand Drive cars are missing the mounting points that are present on the left side drive cars, not allowing this to fit over.

      Kirill C. 5 years ago