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Solid Pedal Feel for Your Evo Under Real Braking Load
The Mitsubishi Evo brake master cylinder mounts to a firewall that flexes under hard braking, and that flex robs pedal feel exactly when you need confidence the most. The GRMGRM091019 GrimmSpeed Master Cylinder Brace was engineered to eliminate that flex with a CNC laser cut 12L14 steel bracket that ties into five factory mounting points, more than any other brace on the market. Drivers who install the GRMGRM091019 often compare the improvement in pedal firmness to switching to stainless steel braided brake lines. No cutting or modification of stock components is required, and the black powder coated finish holds up to years of track and street use.
Key Features
- CNC laser cut 12L14 steel construction with multi point welded fabrication
- Ties into 5 factory mounting points for maximum rigidity
- Large diameter pressure cup protects the master cylinder from marring or damage
- Simple Allen key locking mechanism for easy adjustment
- Black powder coated finish for long term durability
- No cutting or modification of stock components required
Fitment Table
| Year Range | Make | Model |
|---|---|---|
| 2003-2006 | Mitsubishi | Lancer Evolution |
Specifications
| Detail | Value |
|---|---|
| Part Number | GRMGRM091019 |
| UPC | Not published by manufacturer |
| Material | 12L14 Carbon Steel |
| Finish | Black Powder Coat |
| Mounting Points | 5 factory mounting points |
| Installation Hardware Included | Yes |
| Brand | GrimmSpeed |
What's Included
- 1 CNC laser cut master cylinder brace bracket
- Threaded pressure rod and machined pressure cup
- Mounting hardware and Allen key locking hardware
About GrimmSpeed
GrimmSpeed started as a small garage operation in Minneapolis, Minnesota in 2006 and has grown into one of the most trusted names in Subaru and Mitsubishi performance. What began with a focus on WRX and STI parts has expanded to Mitsubishi, Ford, MazdaSpeed, and Hyundai platforms, but the engineering philosophy has stayed the same: build parts that are tougher, smarter, and better finished than anything else on the market.
FAQ
What is the GRMGRM091019?
The GRMGRM091019 is a GrimmSpeed master cylinder brace for the 2003-2006 Mitsubishi Lancer Evolution 8 and 9. It reinforces the firewall around the brake master cylinder to reduce flex and improve pedal feel.
Does the GRMGRM091019 require any cutting or drilling to install?
No. The GRMGRM091019 uses existing factory mounting points and does not require cutting or modification of stock components.
What is the GRMGRM091019 made from?
The GRMGRM091019 is made from 12L14 carbon steel that is CNC laser cut and finished in a durable black powder coat.
How many mounting points does the GRMGRM091019 use?
The GRMGRM091019 uses 5 factory mounting points, more than any other master cylinder brace available for this platform.
Will the GRMGRM091019 damage my master cylinder?
No. The GRMGRM091019 includes a large diameter pressure cup that spreads contact pressure evenly to avoid marring or damaging the master cylinder.
What driving improvement can I expect from the GRMGRM091019?
Owners typically report a noticeably firmer, more responsive brake pedal after installing the GRMGRM091019, similar to the feel of upgrading to stainless steel braided brake lines.
Is installation hardware included with the GRMGRM091019?
Yes. The GRMGRM091019 ships with all mounting hardware, the threaded pressure rod, and the pressure cup needed for installation.
How long does it take to install the GRMGRM091019?
Most installers complete the GRMGRM091019 install in under an hour using basic hand tools.
Install Instructions
- Locate the factory mounting points on the strut tower near the brake master cylinder.
- Remove any factory brackets or components blocking access to those mounting points.
- Position the GRMGRM091019 brace against the strut tower and loosely install the mounting bolts.
- Tighten all mounting bolts evenly to secure the brace to the strut tower.
- Thread the pressure rod and cup assembly into the brace until it lightly contacts the master cylinder.
- Use the Allen key to tension the pressure rod one half to one full turn past initial contact.
- Lock the assembly in place with the retaining nut and reinstall any factory components removed earlier.
Prop 65 Warning
Operating, servicing, and maintaining a passenger vehicle or off road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service the vehicle in a well ventilated area, and wear gloves or wash hands frequently when servicing the vehicle. For more information visit www.P65Warnings.ca.gov/passenger-vehicle
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