I'd have to say silicon couplings and aluminum tubing from Ebay is a less expensive option than anything they offer.

I've just yet to see anyone post the numbers needed.. 30 deg. and 60 deg.. or two 45 deg. and lengths.. etc. Looks like about 100 bucks or so and you could be done with a single intake.

I've been looking at the Dodge Nitro intakes for maybe the Y on a dual setup.