Hi All I have recently bought a full milltek exhaust, decat pipe and full cat back exhaust from someone, should be here by weekend, cant wait !!! Anyway as it is a used exhaust, i wanted to know what are the best cleaning products to use to clean the exhaust system up, make it look like new and what to use to clean up the exhaust joints, example where the back box joins the centre section, centre section to de cat pipe? People that have tried and tested products please put in your info. Cheers.