Hi,
well guys... mine is a EK3 (Exi) so it doesn't come with a )2 sensor in the exhaust... it was confirmed by Stafford, Upul & Rohan.... finally i met up with Rohan, who was recommended by RACERSEDGE... he did some checking & tuning .... now my car is doing 8.5.... gonna run it for a while & see if there will be more improvement.......