Had the car up on the hoist at Ren7Oaks last week to check on the exhaust back boxes and dampers, and although the latter are just fine, one of the back boxes has deteriorated further since it was serviced in September 09. Thankfully it isn't blowing yet, and I am still undecided as to what to do about replacing it. The two guys who run the garage expressed their concern at non-Renault exhausts due to their poor fit. They have seen plenty of systems on 172s/182s etc in the past that have caused much gnashing of teeth for their owners. I really don't want to shell out £300-400 and find that the bloody thing rattles after just a few months. Tempted to go to Prospeed, but they are a long way from me here in Kent. What are peoples' views on the Powerflow exhaust system? Any opinions on sound, price, fit? Would also be interested to know what most people are running. Would like a little more burble, but don't want the hassle. Might end up with a standard Renault one again at this rate!