This is a Bosch LSU 4.9 industry-standard heated 5-wire EGO sensor. These wideband air fuel ratio sensors are the very latest from Bosch and are used in many top quality tuning devices and also by professional dyno-tuners. Suitabe replacement sensor for the Prosport USA wideband kits.

4G63 Turbo dump pipe EVO 4-6 Kinugawa
Banjo fitting M16x1.5 to -6AN
PACEMAKER exhaust system - Holden Commodore VF Clubsport 6.0L and 6.2L LS3
Kinugawa TD04 Actuator (4M40T) Billet (adjustable)
Bosch 650cc injectors set (6) high impedence 