Yeah, I know, I've talked with them. they gave me the suggestion of using the larger Y- pipe that summit sells. Their y-pipe is a little spendy and i'd have to hack it up. The rest of the material the muffler shop can provide. I'll be buying the resonantor from them
I am running the single hi-po system on my 65 Barracuda. I have the y pipe from accurate. I am very pleased with it. My buddy at the muffler shop did the rest of the system and I have an NOS resonator. Car sounds pretty good. I wish I had used a louder muffler than the magnaflow that's on it tho. I am running the hi-po solid cam in my 273 and it doesn't have a lot of overlap anyway.