Have used K & M for well over 10 years, and have always found their service and charges very acceptable. Many years ago my Spacewagon had failed the MOT with a leaking part of the exhaust. Mitsubishi told me I needed a complete new system for £1400 + VAT, other local exhaust fitters said the part had to come from the makers, so they could not help. Got Gary on the case, he located the part and next day I drove away with the exhaust repaired for £200 including VAT. The exhaust lasted another 4 or 5 years before needing any more attention! They are also prepared to do those odd little bits to help, sometimes for goodwill...They deserve the success they achieve !!