Good question Simon, I think the underseat breather is probably a 996RS or similar. Tom is it for the alloy subframe that takes the P8 ECU and will it fit with the ECU under the seat. as for the coolant catch tank is that the one that was on the bench in your workshop when I popped in or is that another one. If I didn't have both of them parts already I may have been interested, my carbon overflow tank came with my 748RS, but they should fit most 748/916/955 and 996 models Checkout the Desmo Due Paddock on Facebook |