S13/240sx Brake Master Cylinder Stopper - LHD
S13/240sx Brake Master Cylinder Stopper - LHD


S13/240sx Brake Master Cylinder Stopper - LHD

Sale price$68.00 AUD
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

S13/240sx Brake Master Cylinder Stopper - LHD

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 conditions.


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. We do make a RHD specific brake master cylinder stopper, which can be seen here:https://au.gktech.com/s13-180sx-brake-master-cylinder-stopper

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 RHD vehicles
NOTE: #2: Will NOT fit with the standard KA24 EGR equipment in place


S13 CA18 180SX
S13 SR20 180SX


Install Videos

Customer Reviews

Based on 3 reviews
Chris Larpthaveesarp
Best bang for your buck!

Install was a breeze, brake feels great. I’ve always seen these items floating around the market and always thought it was a gimmick. Boy was I wrong. If you’re on the fence about it, just do it. My brakes feel 80% better!

Simple and functional!

One of the most over looked upgrades when you drive your car hard, I road race and this definitely helped achieve a more solid pedal!

Allan McHenry
Easiest install

5 minute install. Eliminates all firewall flex.