I bought and installed the IMCO original-style system that Snow Cruiser mentioned in another thread. It went in without too much trouble, although I STRONGLY recommend having at least two people helping.
As delivered, the over-axle pipes were hard up against the rear axle and almost impossible to install. I had to trim the downpipes, resonator inlet and outlet, and over-axle pipe inlet several times to get clearance there and also between the crossflow muffler and gas tank.
When the car's drivable I'll probably take it to a muffler shop to get the fit better and weld a couple of joints. Haven't fired it up yet but will post again with sound impressions.
