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Product Media
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
Community Media
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009
User Media for: GrimmSpeed Master Cylinder Brace - Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009

GrimmSpeed Master Cylinder Brace

Subaru WRX/STI 2008-2014 / Legacy GT VDC 2008-2009

Read 63 Reviews | 8 Q&As
Part # 091029
$95.00

Ships within 5 days

Features & Product Details

GrimmSpeed has provided a quality product that will eliminate the brake pedal flex in your vehicle. Some vehicles may have inherent master cylinder flex at the firewall which can take away from the feel and response of your brakes. The GrimmSpeed Master Cylinder Brace bolts up onto the chassis or firewall, and will fit in between the firewall and master cylinder providing.

The end result will be a solid brake feel, and better braking response, and all that excess pressure that otherwise, would be wasted in the firewall flex, will be used thoroughly in the braking system.

The GrimmSpeed Master Cylinder Brace has been crafted from CNC laser cut 12L14 with multi-point welded fabrication. This is a nuclear bomb surviving component with 5 factory mounting points, which is the most available from any brace. These are finished in a black powder-coated finish, and will restore that precision braking feeling

Product Video

Specifications

Brand: GrimmSpeed
Color: Black
Installation Hardware Included: Yes
Material: 12L14 Carbon Steel
Location: Master Cylinder
Mfgr. Warranty: Lifetime
Condition: New Product
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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REVIEWS & CUSTOMER MEDIA

63 Reviews
4.4 out of 5 Stars
5 Stars
(38)
4 Stars
(19)
3 Stars
(1)
2 Stars
(2)
1 Stars
(3)
Customer Photos and Videos
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
GrimmSpeed Master Cylinder Brace ( Part Number: 091029)
DOES Fit The 09 WRX 6 months ago
4out of 5stars

I was hesitant to get this since I saw a couple of people with narrowbody wrx's having a fitment issue and that it can 3 plus hours to install. The brace, in fact, DOES fit the 09 wrx, but it takes some finagling to get it in place. I also had my top mount intercooler off, which I'm betting made installation a little easier since I could get my hands in other directions. Installation took me around an hour to one and a half hours. The difference in brake feel is pretty noticeable but its definitely not a substantial difference.
  
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Update on 1st review 7 months ago
4out of 5stars

On my 1st review that gave me a CEL. That is now resolve and the code was a lean bank. I did re adjust the clamp that holds the FPR so that it won't touch the fuse box. I also attached the obd reader. The CEL just turned off by itself and I didn't even clear the code. I do notice a firm feel on the brake pedal when driving. I can still see a flex with the brace after install. Per instruction to make one half to one full turn on the shaft which I did one full turn and still notice the flex.
  
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0 of 1 people found the following review helpful
Master Cylinder Brace 7 months ago
3out of 5stars

It was a very tough install like 4 hours?! Can't really notice a difference. I also notice when I release my brake pedal I can hear a click then next thing I know CEL. Don't know the code yet. Hope it's not something serious. The material is good quality though.
  
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Noticable but not a giant difference 1 year ago
4out of 5stars

I installed this with Stainless steel braided lines. I definitely feel more of a firm response but it's not a night and day difference.
  
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0 of 1 people found the following review helpful
Does not fit a 2009 WRX 1 year ago
1out of 5stars

This did not fit my 2009 WRX (hatch). Following along with GrimmSpeed's installation video, the brace seems to line up with whatever holes it needs to in the engine bay, but the supplied bolts did not thread through any of these holes at all. Additionally, some of the existing immovable OEM lines got in the way of actually inserting the bolts. There was another review stating that this brace did not fit his 2008 WRX. I have a strong feeling this brace does not fit the 2008–2010 narrowbody WRXs. I would strongly advise against purchasing this product if you own a WRX from one of those model years.
  
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QUESTIONS & ANSWERS

  • Q: fitment  Sean 09 STI hatch1 year ago

    will this fit a right hand drive car ?
    • 0 of 0 people found the following answer helpful

      A:  This part is only confirmed for LHD USDM vehicles.

      Michael N.
        
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  • Q: Firewall welds!  $teveMac3 years ago

    Just had my firewall welds repaired and ordered this part a while back; just never got around to installing it. Question is: will this prevent/help prevent my firewall welds from cracking again in the future?? Thanks!
    • 0 of 2 people found the following answer helpful

      A:  The master cylinder brace is designed to help stiffen the brake feel, not add any chassis stiffness.

      Cody
        
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  • Q: Fits 2015 STI?  FE5 years ago

    Does this fit the 15 or you just need to use a longer bolt or something?
    • 0 of 0 people found the following answer helpful

      A:  i would like to know this as well, if it fits ill be ordering 1!

      spyounger41670
        
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    • 0 of 0 people found the following answer helpful

      A:  i would like to know this as well, if it fits ill be ordering 1!

      spyounger41670
        
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  • Q: Please Confirm Material  Ferny5 years ago

    Can you please confirm the steel alloy that this brace is made from? Ledloy (12L14) is generally not suitable for applications requiring welding (high sulfur content causes the welds to have a habit of failing). Thanks.
    • 0 of 0 people found the following answer helpful

      A:  Grimmspeed was able to respond to this inquiry and we will be removing the 12L14 label. They mentioned the labeling was outdated and had not been altered for a few years. They are constructed out of mild steel and then powdercoated and they have not had any issues with weld failure.

      Nick S. @ RallySport Direct 5 years ago  
        
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  • Q: master cyl. brace fits??  buc20137 years ago

    will grimmspeed mstr. cyl. brace fit 2011 impreza 2.5i non turbo hatch automatic ???
    • 1 of 1 people found the following answer helpful

      A:  This will only work on the Turbo models listed. Mike

      GrimmSpeed
        
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    • 0 of 0 people found the following answer helpful

      A:  This brace is only confirmed to fit WRX/STI models as well as Legacy models.

      Kyle A. @ RallySport Direct 7 years ago  
        
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    • 1 of 1 people found the following answer helpful

      A:  It fits perfectly fine. I hand no issues installing this on my 2009 2.5i NA automatic sedan.

      evaradar
        
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This Part Fits

Subaru Impreza
2.5 GT Hatchback
2009 Subaru Impreza 2.5 GT Hatchback
2010 Subaru Impreza 2.5 GT Hatchback
2.5 GT Sedan
2009 Subaru Impreza 2.5 GT Sedan
2010 Subaru Impreza 2.5 GT Sedan
WRX Hatchback
2008 Subaru Impreza WRX Hatchback
2009 Subaru Impreza WRX Hatchback
2010 Subaru Impreza WRX Hatchback
2011 Subaru Impreza WRX Hatchback
2012 Subaru Impreza WRX Hatchback
2013 Subaru Impreza WRX Hatchback
2014 Subaru Impreza WRX Hatchback
WRX Limited Hatchback
2010 Subaru Impreza WRX Limited Hatchback
2011 Subaru Impreza WRX Limited Hatchback
2012 Subaru Impreza WRX Limited Hatchback
2013 Subaru Impreza WRX Limited Hatchback
2014 Subaru Impreza WRX Limited Hatchback
WRX Limited Sedan
2010 Subaru Impreza WRX Limited Sedan
2011 Subaru Impreza WRX Limited Sedan
2012 Subaru Impreza WRX Limited Sedan
2013 Subaru Impreza WRX Limited Sedan
2014 Subaru Impreza WRX Limited Sedan
WRX Premium Hatchback
2010 Subaru Impreza WRX Premium Hatchback
2011 Subaru Impreza WRX Premium Hatchback
2012 Subaru Impreza WRX Premium Hatchback
2013 Subaru Impreza WRX Premium Hatchback
2014 Subaru Impreza WRX Premium Hatchback
WRX Premium Sedan
2010 Subaru Impreza WRX Premium Sedan
2011 Subaru Impreza WRX Premium Sedan
2012 Subaru Impreza WRX Premium Sedan
2013 Subaru Impreza WRX Premium Sedan
2014 Subaru Impreza WRX Premium Sedan
WRX STI Hatchback
2008 Subaru Impreza WRX STI Hatchback
2009 Subaru Impreza WRX STI Hatchback
2010 Subaru Impreza WRX STI Hatchback
2011 Subaru Impreza WRX STI Hatchback
2012 Subaru Impreza WRX STI Hatchback
2013 Subaru Impreza WRX STI Hatchback
2014 Subaru Impreza WRX STI Hatchback
WRX STI Limited Hatchback
2011 Subaru Impreza WRX STI Limited Hatchback
2012 Subaru Impreza WRX STI Limited Hatchback
2013 Subaru Impreza WRX STI Limited Hatchback
2014 Subaru Impreza WRX STI Limited Hatchback
WRX STI Limited Sedan
2011 Subaru Impreza WRX STI Limited Sedan
2012 Subaru Impreza WRX STI Limited Sedan
2013 Subaru Impreza WRX STI Limited Sedan
2014 Subaru Impreza WRX STI Limited Sedan
WRX STI Sedan
2011 Subaru Impreza WRX STI Sedan
2012 Subaru Impreza WRX STI Sedan
2013 Subaru Impreza WRX STI Sedan
2014 Subaru Impreza WRX STI Sedan
WRX STI Special Edition Hatchback
2010 Subaru Impreza WRX STI Special Edition Hatchback
WRX Sedan
2008 Subaru Impreza WRX Sedan
2009 Subaru Impreza WRX Sedan
2010 Subaru Impreza WRX Sedan
2011 Subaru Impreza WRX Sedan
2012 Subaru Impreza WRX Sedan
2013 Subaru Impreza WRX Sedan
2014 Subaru Impreza WRX Sedan