86 4kq CO Tap Tube

[Mason Bender <mbender@freenet.columbus.oh.us>]

Dear Quattrophiles-

The CO Tap Tube on my 86 4kq has rusted out for the second time now.

Since the function of the tube is merely to allow dealer mecahnics an easy
time tapping into the exhaust system (and I do tune-ups myself w/out using
this tube), I am considering just capping off the tube at the cat.

I am sure that this tube rusts out on many 4kq owners.  Are people
replacing this item?  If so, is this a dealer only part?  If not, what was
used for a cap.  I may just weld up the existing nut so it no longer has a
hole.

Any input is appreciated,
Mason B