Hi i have a spare magnex exhaust (stainless st) i bought but not fitted the part number stamped on the plate is xs cax -r4-2 does anyone know how to identify what car it fits . since magnex was sold the part numbers have changed , i have looked on line and tried phoning a magnex dealer but have not identifyed the part . i suspect it is for a 205 xs or 106 xsi its a full system with twin tails can anyone help ?