One more question - since you seems like an expert 
I feel like my car is not as good in acceleration as it used to be. I recently got its engine oil changed, oil and air filter changed, got tuning done, plugs and catalytic converter were fine.
my next to-do item is getting its transmission oil changed as its about time. What else do you suggest should i get checked if i feel its not as powerful as its used to be? odometer at 65k atm, so its fairly new in that respect.
your help is appreciated. thanks.