Sorry, topic divergence...you're right Bryan, siamesed inlets and a siamesed and two single exhaust outlets plus a cast iron bock and headers will never be beat! I once had a chap dash out of his van at the traffic lights and compliment me on the sound of my MGB GT after he'd followed me through a tunnel and I was playing tunes on the throttle, said it was good to hear a proper car exhaust note again
I have often thought about the TT but as I use my TF mainly for motorway business miles I was a little worried by how many TT exhaust end up being sold on.