Has anyone tried to use PTS apex seals ? They are s... exspensive, but seem to be the best apex money could buy ! www.performancetestedseals.com

 

they are the only seal guaranteed not to break in your engine, so you could spend the same money or more on ceramics, but you get no guarantee, so you may still be buying more. I have personally never used them but have heard many satisfied customers.

 

Whe have them installed in a 13b and you could notice the difference in compression when cranking the motor. great seals.