jellybean- if you haven't found those couplings I have a suggestion. I purchased a similar kit from e-bay and wound up with the same bright blue couplings and vent hose. I searched lots of local shops and came up with only one red coupling. what i did is tried some RIT dye from the grocery store and dyed the blue couplings black. the reducer coupling came out perfectly black, and the straight couplings were close enough to black that you would really have to be looking to notice. not as nice as pretty new red couplings but a huge imrovement over the bright blue. as for the vent tube I just used the stock black hose. no blue in the engine compartment and I'm stoked. By the way those couplings can be quite expensive (10-25 bucks each). good luck.