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Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper (Part Number: )
Community Media
Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper (Part Number: )
Cusco Brake Cylinder Stopper
Subaru WRX/STi 2002-2007
Read 7 Reviews | 5 Q&As
Part # 666 561 ALHD
$108.30
msrp: $114.00

In stock! Ships same day

Features & Product Details

Cusco is one of the pioneering companies based out of Japan that has invested countless hours of research, design, and engineering to develop quality suspension and performance products that will improve your driving experience. Some of the fasted cars around the world who compete in time attack, time trials, and other racing avenues will more than likely have a Cusco product on their car.

This is the Cusco Brake Cylinder Stopper. This particular component has been designed to reinforce the mounting points of the brake master cylinder and to repair the inherent flex between the brake master cylinder, and the firewall. This is a common issue for those of you who auto-x or participate in weekend track days where extreme braking will occur. 

Installation can be performed with basic tools as the holes on this brake cylinder stopper match the existing provisions on the firewall. Hardware will be included, and it will come powder-coated in Cusco's flagship blue color for extra resistance to rust and corrosion. 

Specifications

Brand: Cusco
Color: Blue
Installation Hardware Included: Yes
Material: Steel
Location: Master Cylinder
Mfgr. Warranty: No Warranty
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

7 Reviews
5 out of 5 Stars
5 Stars
(7)
4 Stars
(0)
3 Stars
(0)
2 Stars
(0)
1 Stars
(0)
Customer Photos and Videos
Cusco Brake Cylinder Stopper ( Part Number: 666 561 ALHD)
Cusco Brake Cylinder Stopper ( Part Number: 666 561 ALHD)
07 STI 4 years ago
ahicks47117847
Installed was easy enough in theory. My big hands got in the way along with not wanting to do extra work removing pieces around it. Eventually I got it in. Another high quality Cusco part. Brake pedal response feels better but without any scientific testing, I can't tell you if it actually made a huge difference or not. If nothing else its some nice Cusco blue to add down in the depths of the hood.
  
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Cusco bcs 4 years ago
Kevin Tyler
Installed on my 02 wrx wagon, greatly increased pedal feel and stiffness. At 160k miles my brake pedal felt soft and had to push almost half way in just to start rubbing the brakes. With this the pedal is almost instantly applying brakes. Probably the best improvement item i have installed. Recommend to anyone looking to get better feel from their brake pedal. Excellent product.
  
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Works great!! 4 years ago
JDM_SKYLINE30277
It was a little hard to install but once installed my brake pedal feels solid. I love the Cusco part!!
  
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PITA to install 5 years ago
ahoffman198435963
Not sure I notice much of a braking difference. Looks cool in the engine bay nonetheless. Pain to install.
  
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Easy Brake feel upgrade 5 years ago
Kevin R.
Took the wiper fluid tank out of my 05 wrx and it was easy. Just took a while to tighten one of the bolts because of space. It does exactly what it's designed for, decreasing sponginess due to MS movement. Very satisfied. Highly recommended. Perfect fitment.
  
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QUESTIONS & ANSWERS

  • Q: rhd compatibilty  wild.hacker25 years ago

    will this fit RHD cars?
    • 0 of 0 people found the following answer helpful

      A:  This is made specifically for left hand drive cars and will not fit right hand drive cars.

      Zach G. @ RallySport Direct 5 years ago  
        
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    • 0 of 0 people found the following answer helpful

      A:  Cusco offers a RHD version, please use 666 561 A as a part number from Rallysport Direct. Same pricing!

      Steve @ Cusco USA @ Cusco 5 years ago  
        
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  • Q: Fitment  A17Attacker715006 years ago

    Will this fit onto a 2001 2.5RS?
    • 0 of 0 people found the following answer helpful

      A:  Cusco only confirms fitment with this part for 2002-2007 models and I don't believe it will mount properly on your 2001 model.

      Zach G. @ RallySport Direct 6 years ago  
        
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  • Q: Fitment for GC8 type R  zeroyon223038176 years ago

    Hi, do you have a master cylinder stopper for a RHD GC8 sti type R? Its a my99 version 5 without abs
    • 0 of 0 people found the following answer helpful

      A:  I believe that is going to be part number 657 561 A and I don't show we stock this item or that Cusco USA stocks that here either. We can special order it for you if you are interested please contact us by phone, email or chat.

      Tanner S. @ RallySport Direct 6 years ago  
        
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  • Q: Fuel filter  actalone_bassist6 years ago

    Would I have to relocate the fuel filter or get an aftermarket fuel filter when installing this item?
  • Q: Will Cusco Brake Cylinder Stopper Subaru Impreza (inc. WRX / STI) fit a Legacy GT?  05LGT7 years ago

    Will this master cylinder brace fit on a 2005 Legacy GT? According to this write up on the LGT forum, it will: http://legacygt.com/forums/showthread.php/cusco-master-cylinder-bracket-installed-80021.html The photos shown in this thread are clearly from an LGT. I've confirmed the position of the vacuum hoses and fuel lines. There's enough play in them to remove their brackets and install the Cusco brace. The holes on the cylinder brace look like they'll line up exactly with existing holes in the strut tower. Do you have any information to back up the claim made on the LGT forum? Thanks!
    • 0 of 0 people found the following answer helpful

      A:  Short answer, no. Cusco lists the fitment as the GD Impreza and not the LGT. The poster in said thread that actually installed it even said he thinks it was for a JDM car (see post 9). So this would be an at your own risk type of deal. If you get the brace and before opening it you decide it will not work, we can take it back. But once it is opened, we can not accept a return on it. You can view our return policy here at http://www.rallysportdirect.com/policies_returns.cfm . Thank you.

      guest5633b7522a8d259b038ba50d @
        
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