I had to replace the front pipe as it had snapped at the flexi, it was'nt too noisey but I did notice the diffrence in fuel consumption. So I done the usual phoning around and as much as I am not a fan of kwick fit they done it for £173.20 with a 3 year warrenty. So I was quite happy at that.
It was the Orignal exhaust and the first part to be replace, the car had done 110,000 miles
(1.6 focus 04 hatch)