just an update, there is no ACE anywhere near me and no hardware store that sells 4mm washers... so i purchased a Factory Pro Jet Kit, specifically for "race exhaust" (hehe) and individual filters, which i already have some UNI Pod 4200's, I'll need to replace the valves soon but new rings along with a well over-due valve adjustment... i can't wait!!

 

A word of caution. Even though the instructions tell you to DONTdrill the slides. You will wish you hadnt.

 

Heh, alrighty, thanks for the tip bro.