These gaskets are highly recommended when dealing with minor leaks due to flange design or aftermarket exhaust. Although I have an aftermarket exhaust, mine has a flat flange design that doesn't seem to work as well with traditional exhaust gaskets. The problem I have is that I have a dual exhaust and to make both look symmetrical in terms of positioning and rotation you have to tighten it so there is a leak. Conventional gaskets seal well for a short time, but eventually leak. These pads are thick as advertised with plenty of compression. The slots really help as my center tubes are so close together that installing a conventional gasket and threading the bolt through makes it difficult. Overall I am very happy with them and will use them again.
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