NO, cleaner air is always good though. I had K&N and switched to TrueFlow
after seeing thier filtration test (on thier site of course), pretty impressive over the K&N but maybe I'm a sucker. No HP or mileage gains with either. Tornado is Voodoo, but oiled filters are race proven and do provide superior filtration like a synthetic element oil filter over paper.
I had a big increase in the horsepower by putting a Borla exhaust system on my 300c. Also had an increase of about 2 miles per gal. I didn't change the air filter from stock. This would indicate to me that the stock intake filter is flowing enough. I have seen dino runs with the stock filter in and with the filter removed and no horsepower gain was observed. Dixie
II Kings - I think you may be on to something on the K&N filtration test. Good friend "has a friend" that gets his oil "tested" in his street rod at every oil change, and the contaminants/particles in the oil while using the K&N were higher than other filters. I didn't ask what filter he's using now, and I haven't seen the tests results, so I can't verify this..just something I heard from a trusted source.
That said, I yanked my silencer and dropped a K&N in for now. Waiting for Vararam to get their KingCobra on the market for us (should be soon from the email I got today).
PS: The service manager at my dealer said that they saw wear at the top of the cylinders with engines that used K&N filters. He said they would fix engines that had excessive oil consumption if the the K&N was used. I think the K&N is great if used properly, but oiling the filter just right takes a little practice or someone to show you how. It is easy to over oil it, or not read the instructions, and not oil itl. Also a light layer of dust on the filter helps filter smaller particals and should not be cleaned unless really needed.
DT - The dealer saw wear at the top of the cylinders with engines that used K&N drop-in air filters? That doesn't sound like a good thing. I thought the K&N was supposed to just let a little more air in?
I bought a K&N drop in, just because it's only twice the price of a stock unit, and it lasts a lot longer. In the long run, you save money. Anything that lets more air in by nature won't filter quite as well. Something has to give. However, I maintain my car to a high mechanical standard and don't believe particulate ingestion to be a major concern for me. I notice no gain in performance, throttle response or gas mileage. If you were going to buy for those reasons...don't.
I bought the k&N drop in filter too and also found no difference. I switched to the Airraid cold air intake and yes there is a difference, just the sound alone is worth the money!!!
I don't want to start yet another tech war over mass airflow sensors and such, but I can hear the WOOOAAAHHH of more air being gulped and I can feel without a dyno that there is a HP increase, especially top end!!!!
The Volant looks awesome! I may have to change again! Its funny how every single member who has bought a cold air intake system loves the horsepower gains, and the sound, while those without one keep saying it does nothing to to improve performance. I guess its just our foolish pride trying to justifying the expense. Somebody put the coffee on!
You then haven't seen the Volant. I'm the one that posted that site a while back and the company still doesn't have any avaliable. I should suggest that you check out the ram air tube that comes with the Volant.