I like Magnaflow's products and they do sound good, the only real benefit to a pre built exhaust would be us being able to install on our own, but if the price isnt any better than an exhaust shop building it and using a magnaflow muffler then there's no point. Are they also going to attempt to fit any type of tubular header and mid pipe? I would be VERY interested in that! A full system would be great!