I should hopfully be getting a used (JDM) Mugen Twin loop at some point next month. In preparation I'd like to try and get hold of some of the required nut's bolts and gasket's I'm bound to need. Does anyone know the size of the axle back join on the Twin loop. I'm sure I've read it's the same as the JDM header. If so am I correct in thinking the JDM header donut gasket is the same as an S2000's ? I can get one from my Honda dealer if that's the case.