Speaker up grade will happen some time this week. I was going back home on friday night,when i tried to over take slow moving car, i was in for surprise no turbo punch at all. Car moved like NA car, since it was late in the night , i decided to look at it in the morning, Noticed a kind of oil leak in the hose which connects to intercooler. Went to harish of pride cars to get it addressed, he had to open the bumper to check it properly, after tightening of the hose clamps, car is back to it's glory. May be I need to get intercooler cleaed once as this second time the clamps/hose is becoming loose before intercooler.