GReddy TURBO KITS: Mazda RX-8 2003 / T618Z - Manual (Page 15)

2. Install the O2 sensor to the down pipe
adapter and install the adapter to the Turbo
using provided gasket and hardware. Connect
the O2 sensor connector.
(Parts Used #3, 47, 66)
3. Connect the Air Pump hose to the down pipe
adapter. Bend the hose so that it will not
contact the turbine housing. Re-use the stock
gasket.
(Parts Used #63)
4. Secure the Down Pipe Adapter to the
transmission with the provided bracket.
(Parts Used #20)
5. Reinstall the Catalytic converter, exhaust
system, and the cross member in the order
they were removed using the factory gaskets.
6. Reinstall the transverse member.
7. Cover the Air pump hose with provided wire
loom and connect the hose for the AIR control
valve.
(Parts Used #53, 56)
8. Connect the AIR control valve hose and the
connector.