Jet Hot Y-pipe

Does anyone have a jet hot y-pipe with there long tube headers on their ls1

My brother has the jet hot long tube headers on his ls1, and he was wondering about the clearance under their with the y-pipe, and how well the y-pipe fits.

I'm about to go out and install mine right now. I'll let you know how it goes. In the mean time does anyone have any tips? There were no instructions and all I have to go by is the picture on their website. I'm only guessing how it is intended to go together. I think the picture's wrong too.

I have mine installed now. It surpised me how easy it all went together. It fit perfectly to my new magnaflow cat-back system. I did notice however that the section of pipe that fits onto the header is very close to the drivers side floorpan, and after a test drive it is hitting. I will try some adjustment and if that fails do the high temp hose trick. I don't think clamping it together with the supplied clamps is adequate and it seems prone to exhaust leaks. I'm gonna have a friend weld it. Initially I am overall happy with it.