Well, I've had Kuhn's chili, and I know where to get it ... but it won't help you guys. And I'm sorry. The following is just history and trivia.
Keith Kuhn makes the sauce (actually a better term than "chili") in small batches. To my knowledge, Danny's is the only restaurant he vends to.
Kuhn's used to have its own drive-in style burger place attached to a restaurant/bar for years. This was on Black Rock Turnpike in Fairfield.
I've met Keith (we have a mutual friend) and every so often, he'll give a jar to this friend, who'll whip up some dishes with it. "It's not really chili," says Keith. "It's a condiment." Forget about getting close to the recipe. I think it's the finest dog-topping I've ever had ... and I just had Gary's homemade relish at Super Duper Weenie yesterday. Ironic that SDW is also on Black Rock Turnpike.
In my opinion, some sort of home-grown peppers are used, which makes the stuff even harder to duplicate.
Keith just doesn't want to mass-produce or sell the stuff. I have no idea what his arrangement is with Danny's, but you're going have to go there yourself.
Danny's is at 940 Ferry Blvd. 06614, so you can Mapquest it. Of course, if you know anything about CT food, you must check out Super Duper Weenie--reportedly, the place is featured in Bon Appetit 11/03 edition.http://www.superduperweenie.com