S14/S15 Brake Master Cylinder Stopper - RHD


S14/S15 Brake Master Cylinder Stopper - RHD

Sale price$84.00 AUD
SKU: s145-bmcs
In stock

What is a Backorder?

Q: What is backorder?

When a product is on backorder, it means that we have sold out and we are opening a back order due to popular demand. This is essentially a queue, when new stock arrives from production, we’ll send your order.

Q: Will items in my order that are in stock be shipped out first?

We will send your order altogether once your backorder item is ready! You may wish to place separate orders if you want an item before the other is due back in stock.
Pickup available at Sunshine West, VIC 3020 Usually ready in 2 hours

S14/S15 Brake Master Cylinder Stopper - RHD

Sunshine West, VIC 3020

Pickup available, usually ready in 2 hours

Unit 11/94 Boundary Road
Sunshine West VIC 3020


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Product enquiry

The GKTECH brake master cylinder stopper helps eliminate movement in the brake booster which causes sponginess in the brake pedal under hard driving condition


Will this fit my car?
We can only confirm fitment for the vehicles listed above under vehicle compatibility. If your car is not listed there, then we don't know if it will fit.

Do you make these to suit other cars?
We only sell the parts listed on our website. If it's not listed on our website, then we don't sell it. Sorry.

What's the advantage of using the GKTech brake master cylinder stopper?
This small but effective stopper ensures there is no flex in the firewall, which is super noticeable under hard braking.

What modifications are required, is this hard to fit?
No modifications at all, the bracket simply bolts up to the OEM M6 holes in front of the master cylinder.

Is there anything else needed for installation?
No, the kit does come with all accessories and will arrive as shown in the product photo.

Can I install this myself? If so how long will installation take?
Yes, you can. This is a super easy and effective install, which should take around 15 minutes.

I'm running a bigger brake master, will this still fit?
Yes, the brake master cylinder stopper will fit providing that you're still running the standard brake booster.

Does the firewall really flex that much?Yep, it sure does. It's actually very noticeable under hard braking conditions. The brake master cylinder stopper truly does make a difference and is one of the good value for money mods.


NOTE: Will NOT fit LHD vehicles




Install Videos

Customer Reviews

Based on 4 reviews
Michael Zhang
Arrived quickly excellent product

Super easy to install, good quality

James Perfect
S14 Zenki Master Cylinder stopper

Apart from not containing any instructions and one screw being difficult to locate as the master cylinder is right in the way, the product is perfect, well made and works as intended. Thank you

- R|B -
S15 Brake Master Cylinder Stopper

Great product! Although a little tedious to install the nut right near the brake master cylinder, once that was on the rest seemed to fall into place. I was a little concerned that the two braces were not going to fit properly, so had to switch around the sequence of which bolts or nuts I was installing till I was able to figure it out. A simple product an installation diagram including a sequence would have made the install a little quicker. But once installed, the brake pedal feels much firmer, and I feel that the brakes have gained extra bite especially when holding the brake pedal at a steady pressure and coming to a stop. I can't wait to go for a longer drive to really test it out! Highly recommend!

Stiffy Master

Nice piece of kit. My fuel pressure regulator was located on the strut tower, but it simply bolted straight over the top of the front bracket. The shorter adjustable rod really came in handy. Great colour and craftsmanship.