The new TGN filter cap is made of solid billet aluminum. Adds a nice clean aftermarket look to your great working stock filter. For an added feature we have machined in a small grease lip inside the cap to help further seal the cap against the filter.
This is called a grease lip because experienced off road drivers will take grease or petroleum jelly and put it between any a surface your filter touches, thus eliminating any area the dirt can enter your intake. A must for a fully equipped Baja.