[Brzetto]

Originally Posted by lordtakuban

By increasing flow, which some drop-in filters do, it will increase engine efficiency and power. Will it be enough to notice? Probably not, but it will still exist. And not all CAI's increase power. Most are nothing more than cosmetic items where a drop-in filter replacement would have done a better job.

All that said, I agree with your last statement that you won't really notice any real power gains without installing decent parts and tuning for your parts and your car specifically.

As for re-oiling and all that nonsense, just buy another high end filter and throw the old one away. The re-oil kit is going to cost you about $15 to $20 already. Then add in your time to do it. And, if it's your only filter, you shouldn't drive without it in the car, so you'll have to wait while it dries and is ready for re-installation. Time alone, it is not worth it for me.

I will probably buy the TRD filter as the K&N's do come with a little too much oil for my liking. However, if the oil is fowling the MAF, just take it out and spray some electronics cleaner to fix the problem when you switch back to a better filter.

Some cars have a noticeable power increase with the drop in K&N. Others not so much. It depends on the car/engine.