That's exactly the system I had on my HPE back in the day. Full Ansa from front to back and, if memory is correct, it was a bugger to fit as it did away with the cast iron manifold.... Sounded good, a little more expensive than a standard one but it outlived the car. Or at least it was still on the car when it went..
I'm still thinking about the system for the Coupe. Probably going with a single straight tailpipe.....