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Message: <blockquote data-quote="Izso" data-source="post: 1064394200" data-attributes="member: 2429">K&N has their own proprietary oil. Use back the same.I probably should do a mythbuster article on this but Mightcarmods have done it already. And they did the test between stock, drop in, open pod (no brand) and open pod with CAI. The one that delivered the best results was stock. It was all done on a R34 Skyline mind you. I have my reservations on this but it does settle some debates. I've personally been messing around with open pods, varied length piping, and all. Right now I'm using drop in and that says a lot. I did all this on my 3-speed auto too. Standard length piping and open pod with no heatshield - lost a lot of low end to mid torque. High was fantastic. But realistically how often do you get to use that range of power band? Short piping with open pod with heat shield and CAI - lost low end torque, mid and high was reasonably good. Super long piping all the way into the bumper, shielded piping, open pod and CAI - lost low end but mid to high was pretty good. But had issues with water being sucked up. Removed CAI and problem solved. Biggest problem was filter got dirty super duper fast and to remove it I had to remove my bumper. Bloody nuisance. Drop in + CAI - Can't really tell the difference until you put in a stock OEM filter, then you'll realize just how good the drop-in is. CAI picks up a lot of stones, dust and dirt. Completely filterless and straight CAI into intake manifold - low end sucked big time mid to high was bloody loud. Intake noise is unbelievably loud with performance only at the much higher revs. Conclusion - I'm a lazy ass. So drop in without CAI is what I chose to use. I have a air passage way to the filter but not a direct flow with a CAI. Water and dirt is too much for me to be concerned about since my car is relatively low. And you don't need a piggyback to utilize a drop in or whatever la. Most modern cars have adaptive ECUs so give it a day or two and it'll adapt. Basic formula is : Fuel + air = powerMore fuel + more air = more power.If fuel is standard + more air = running lean. ECU will pump in more fuel eventually and compensate. Piggybacks can only optimize these settings to a certain extent since most stock ECUs are programmed to be conservative in the first place.</blockquote>

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