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.

Short shifter - Nissan 300ZX Z32
Turbo oil return fitting kit TD04 TD05 TD06 Kinugawa onepiece
SSQV flange for EJ20 (type 2) Subaru - bolt on GC8 WRX
DPR wheel spacers 15mm 4x114.3 Nissan (pair)
Turbo oil feed kit TD05/TD06 EVO 4-9 oil filter housing type - Kinugawa
Wastegate dump pipe (screamer pipe) 50mm
Turbosmart FPR2000 fuel pressure regulator 