Hi guys, I'm from Singapore and we get the UK spec rx8 through the official Mazda agent. My ride is a 2005 6MT. I just found out that the previous owner "decatted" the stock cat so essentially its a straight through with all the ceramic insides gutted out. Was wondering if you guys could help in telling me the cheapest source in the UK for a brand new Mazda Cat and also a source for used cats in good condition. We can't use non-mazda type-approved cats here (unless it looks identical externally to the factory cat). Online stores with listed prices would be beneficial too. Wife's going to UK next week so if I find one, she can collect it and lug it back as check in baggage. Cheers!

Well if you need an OEM cat, a dealership would be your best bet. As for used ones, I would just check the for sale section.