The caddy intake elbow is from any 4.9l FWD Caddy. You can find plenty of them in the boneyards. Then you use piece of 3" PVC pipe (aka sewer pipe) and a 3.5" ID cone filter. Should be able to piece one together for less than 50 bucks. Here's a pic of what it looks like all done:
And here's the link to my write up on the ISSF.
Here's the instructions that another forum member wrote up that I used.
The 9C1 y-pipe has a 2.75" outlet, IIRC. And could be sourced at any place that can get exhaust parts. You may also want to try our local GM parts guy, Chris McCabe @ Banks Chevrolet in Concord, NH.
Any competant exhaust shop could bend you up either a dual or single set up... You're looking at anywhere from $200 to $500, I'd guess...
_________________Bill "The Verb" Crovo
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