You got 2 options 1. Plug up the 2 rubber tubes at the top of the AI pipes with suitably sized ball bearings
2. Take off the whole unit - all you need is 2 x Nissan Bluebird sump plugs ( 12mm x 1.25 ) + 1 x 19 rubber plug for the airbox + 1 x rubber cap to close off the Vacumn port on the LH side intake manifold.Take off your Tank first & the rest is self explanitory. No 2. option is better because you can access your spark plugs a lot easier
Hoffo
