Zafira Gsi 2.0ltr Turbo

Description:

For swaps/sale my black zafira GSI in black with full leather heated seats drives mint no knocks or bangs smokes a little on start up and boost been told possible stem valves but unsure does not effect performance at all list of mods are as follows
modification:
lowwerd 80mm all round
18 Inch penta alloys in silver
Blow off vaulve
vxr maf sensor
stage one map running 235 bhp
tinted windows
k&n induction kit
straight through exhaust
only problem is that the engine management light is on due to removeing the o2 sensor
WHY?
Update: stem seals have been done full rebuild on the head cambelt and water pump done car now runs full boost in every gear.