GKTech - R33/R34 Skyline Brake Master Cylinder Stopper - R33X-BMCS

GKTech - R33/R34 Skyline Brake Master Cylinder Stopper - R33X-BMCS

Marsoni

M251S

$115.13

Get it in 3 business days with 1 day shipping. Friday, May 29

GKTech - R33/R34 Skyline Brake Master Cylinder Stopper - R33X-BMCSThe GKTECH brake master cylinder stopper helps eliminate movement in the brake booster which causes sponginess in the brake pedal under hard driving conditions. One of the best value for money mods you can do to improve the feel of your brakes. Note Non turbo (shorter) master cylinders require a longer main bolt being m8x1. 25x100mm Do you sell brake master cylinder stoppers for other cars? We only sell the products listed on our website. If it's not

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Just ordered my 3rd to keep one in each car. Good unit. The first one I bought was in 2022 and still works great. Reasonable fast to inflate tires -- don't compare it to shop air or a gas station, but it's way faster than cheaper ones. Only negative, I think my daughter lost one somehow because I should have had enough! :-)

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Reviewed in the United States on April 10, 2026

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Tom Shutt

Carnegie, US

★★★★★ 4

Easy to use tire pump

Has easy to read digital pressure gague. Has built in light for finding tire valve stem in dim garage. Hose is flexible and stores by wrapping around pump. Shuts off automatically when tire is at desired pressure. Pressure on pump matched readings on my car tire pressure readout. Pressure only shows half psi increments so it takes a while to see if the tire is inflating. Inflation is somewhat slower than the one this pump replaced but it gets there accurately eventually.

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Reviewed in the United States on January 26, 2026

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Shopper

Bozeman, US

★★★★★ 5

Nice tire sealant.

Size: 32 oz

This seems to work very well. I will say that it seems to be pretty important to move the wheel around as soon as you can to distribute the product within the tire. I was held up for a few minutes and the Liqui tube seemed to start to set up in one spot and made the tire out of balance so I had to work quick to get it to distribute to the other parts of the tire. It seems to have worked though and so far the tires are holding air very well. I will be interested to see if it lasts for a long time but so far so good.

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Reviewed in the United States on May 18, 2026

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Captain Al

New York, US

★★★★★ 5

This stuff works!

Size: 32 oz

I was sceptical but wanted to avoid replacing 2 rear tires on my zero turn mower. The tires were leaking air and had bad sidewall cracking. I found the use of the product to be easy and quick. I aired up the tires and rode around the yard a few minutes to distribute the product in the tires. It has been 4 days and both tires remain aired up. Previously both tires would already be flat within this timeframe. Excellent results for me!

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Reviewed in the United States on May 18, 2026

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james Bays. Yup

Charlottesville, US

★★★★★ 1

Doesn’t work for a car Tire seal slow leak

Size: 16 oz

Does not work for a car tire. Had a slow rim seal leak. Out 32oz in still leaks the same. Do not buy. I got the one with fibers in it. It worked just fine. This does not work. Period. $30 wasted actually I purchased two so I wasted $60 when I could’ve bought probably a new tire

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Reviewed in the United States on April 8, 2026