Mnez: Standing outside the car I can definitely smell the exhaust more, which I would expect without the cat. Engine smells come into the engine compartment whenever the heat is on. Sometimes it smells like exhaust and other times oil. I don't have a oil leak though.

Dublinoh: Thanks for the tip on the hose. Still looking. :)

I think this is what you are looking for,

SCEET AIRCRAFT DUCTING from Aircraft Spruce

That 60mm hose is available from peilican. I bought some last year. I don't recall the price, so it must have been reasonable.

and look like this if you do a Backdate the Heating system.

http://forums.pelicanparts.com/uploa...1328809106.jpg

JJ -- Looks good! I've decided to let my shop sort it out.