Thanks! Dealers cannot void your warranty for aftermarket parts.
I'm a believer in K&N and have been using them for years. Right now I have one in my 03 Mustang GT with almost 99,000 miles on her. The K&N was cleaned at 50,000 miles and reoiled. No problems here and don't have to worry about changing the oem filter every year.LOL those "studies" are a joke... K&N filters BETTER than stock. If it was even equal to stock, and still flowed better, that is ALL you need/want.
I used a K&N one time, after a month, it blown the MAF on my TDI, i tought it was the age of the MAF so i changed it(135CDN$). A month later the MAF blown again, changed under warranty, I then changed the K&N with an OEM paper filter with prefilter and never had any other problem. Sure the airflow was better with the K&N... but this trick costed me 185$ in a month and half... My mechanics told me that this was due to the oil mist released by the filter itself that gets sticky on the MAF and other components so dust and dirt can easily stick to(like it's meant to be in the filter, stick to particles so the wont pass the filter). Sure it depends where is the MAF located, air pressure (Vaccum in the filter box to the turbo) and airflow . Many people recommend K&N for non-turbo setups only due to the pulsating airflow that help the oil fall in the tubing with the dirt. Imagine all those fine dirt and sand in a 150K RPM aluminum blower... add a little bit of oil in it and it comes pommice, sanding grease, tar or mud.... take a look to this test. This guy did a good test and tried to spread the results to get consistent numbers as much as possible.I wish I could find those links now. There are studies that show that the K&N filters do let more dirt through than many other brands of filters. Whether or not that extra dirt causes harm to the engine is a different story. The job of a filter is to remove dirt, not pass air. So I opt for the brands of filters that are the best for doing just that, removing dirt. K&N's whole promotion is on providing more air for performance. That's great on the racing circuit where they regularly tear down and rebuild their engines between races. For my car with the recommendation of changing filter at almost 50,000 miles, I'll skip the process of cleaning and oiling a permanent filter. I have no problem if others like them. It's your car.
I'm glad to hear someone that point in the same direction than me. I also think we need better paper filter, in my TDI i used to have a prefilter, it's like a foam or cotton on top that traps big particles, at mid life, we remove it to improve longevity of the filter. It was dark and dusty after 8000km. I don't know why it's not the standard(the foam prefilter). This over boosted TDI (150bhp/300+pounds torque) was sucking a **** lot of air and particles due to the positionnement of the intake port right above the front grill fascia. We need two stage filters on our cruze. I'll give a try to NAPA gold air filters, it looks like a good compromise between efficiency and air cleaning and it's cheap. How often do you replace the air filter on the cruze?I stopped using them when they kept causing my O2 sensors to malfunction. Just use a good paper filter. I think we need better paper filters not oiled ones that don't filter.
+1. I have had a K&N on just about every car I've owned since the 90's. I put one in my 85 Vette back in 92 and it's still in there to this day. I did over oil one once in my 98 Contour SVT which did throw a code but a little electrical contact cleaner sprayed on my MAF fixed it right up. But hey............whatever floats your boat...............I'm a believer in K&N and have been using them for years. Right now I have one in my 03 Mustang GT with almost 99,000 miles on her. The K&N was cleaned at 50,000 miles and reoiled. No problems here and don't have to worry about changing the oem filter every year.
I'm pretty sure that if you could put end to end a K&N and a paper filter... I bet a 100$ bill(CDN$ that is) that the paper filter will still get as dirty within a week if not reddish 'cause of the oil.Look at the filtration numbers done by a private lab and produce your own opinions and conclusions. I will NEVER run a k&n filter on anything I own. My 8.1 truck had one in it when I bought it, I got rid of it in favor of a paper filter within the first week. There is no noticeable gains to be had from swapping in a filter (1-3 hp? you wont notice that) so I will take the filter that filters much better.
Oh, and the dealer CAN void your warranty if they can prove that the part you added caused the failure or helped in the failure. Turbo goes bad bc of excessive amounts of dirt in it and running a k&n that filters. K&N claims they filter 99% of what the OE filters do. Some of the tests ive seen show 200-300% more dirt/dust makes it into the motor running a k&n. im sorry, that 1% is HUGE when it comes to the amount of dirt making it into my motor. My best suggestion is to take the time, check around and see independent tests and see what their results are. If you are fine with running a k&n after seeing the results, thats fine as it doesn't affect me...
Im gonna call bs on this one. Up until my old LS Cruze that had the injen, i have always used k&n. And every 2 months i clean them and they always expelled tons and tons of dirt when i did. The k&n filter does its job for sure.I wouldn't ever use a K&N filter. I like my filter to actually FILTER the air that's going into my engine. K&N filters have much, much worse filtration a traditional paper filter.
Are you referring to the performance intake or the drop-in filter?I use oiled filters in all of my dirt bikes and ATVs. In those applications, they provide a good performance boost. However, in my cars, it doesn't provide enough difference to justify the price.
Well if you have a 1.8. Buy one I did. AM does not make the filter for a 1.4 yet?!?!?!!?i'm just not a fan of oil based filters.. i would like to try out a dry AEM sometime though.