I recently upgraded my automotive engine with a gasket from this brand and I couldn't be happier with the RESULTS. The gasket provided a perfect and leak-free seal on my valve cover. After I put it to the test with some high-speed driving I noticed a significant improvement in my engine`s performance! The gasket is made of high-quality material and is very durable. The only con is that it's a bit pricier compared to some other brands, but the quality is definitely worth the extra cost..