Ecotec Ported Head Wire Harnesses & Adapters 2008-09 Saturn Aura Hybrid for

2008-09 Saturn Aura Hybrid for L4 2

The XPZ requires ported heads with machined valve guides

if you do not relocate the seal

Rod bearings must be purchased separately

Most GTPs are losing between 1

Ecotec Ported Head Wire Harnesses & Adapters 2008-09 Saturn Aura Hybrid forA ported head increases airflow by reducing restriction therefore more high rpm horsepower. Increasing head flow creates more horsepower at the same boost level and works very well with aftermarket cams. LSJ: All flowed at 28", 3. 5" bore plate, exh had a 1 5 8" flow tube, and stock valves (int. 35mm, exh. 30mm). Do NOT be fooled by other venders flowing heads without a flow tube, in the real world people run headers, not open heads without headers or