I recently had a good deal of work done to my Evo, including new rings, and I talked to my shop at length about these things and finally went back to stock HD rings. Essentially, they said that there was no reason to use them for street applications. I don't have them--totally satisfied with going back with stock HD rings, and after reading the above, I'm glad I didn't use them.Friday1 said:I put them in my turbo EVO and after literally HOURS of consulting with the tech dept at Total Seal to make double sure they would work in my application- I broke the valve relief off the rear piston when the ends of the "stepped" ring ends touched and lifted the top of the piston off. <snip>
These rings were wrong right from the start.