On Friday I got a Longlife (www.longlife.co.uk) performance duplex exhaust fitted to my A4 2.0t quattro. Wow, it looks great, sounds great and makes my car fantastic! I got it fitted as a "cat back", chose a "Mid Sports Note" , as I didn't want it to sound like a scooby chav car. It sounds better from outside the car, inside you can only notice it, but it doesn't disturb the stereo. Just the way I wanted it to be. Got similar end pipes on the exhaust as I had prior - so it keeps the car looking like an ordinary Audi A4. The exhaust is made from aircraft quality T304 british stainless steel (& T316 ss tig welding rods) and they did a fantastic job of fitting it. It's flush to the underside of the car, heat resistant paint applied and the back boxes fit nicely behind the diifuser - so they can't be seen under the car. One of my main issues with the Audi exhaust systems is those damn visible back boxes. Leaving the best till last - they reccon I'd get about 10% more bhp so 277 (4WRR tested after Pendle Performance remap) + 27 (Lonlife exhaust) = approx 304bhp now! It's true - the car feels smoother and there is a mass of more power. For a duplex exhaust it cost me sub £500 fully fitted, with a lifetime guarantee for the full life of the car. All in all, a fraction of the price of a Milltek system and highly recommended. If you haven't noticed already, I'm delighted! Tim.