Just saw the thread, don't know why it was locked. My 08 CB1200 has the tubes secured at the factory.
Each 2 tubes are secured with one fender washer and screw, also high temp sealer. If you remove the convection fan and plenum housing you can do the same.
Each 2 tubes are secured with one fender washer and screw, also high temp sealer. If you remove the convection fan and plenum housing you can do the same.