At a hardware store, they are just the caps that you would use to cap a copper pipe with, Im pretty sure I used 1/2 inch... Good luck... -Nick


"My family hauler can kick your family hauler's @SS!"
~~~~1999 Contour SE Sport~~~~
-KKM True Rev
-Custom cat back Flowmaster exhaust
-All Cat's fixed.
-SHO Shop Off-Road Y-pipe
-Many other Mod's done...