these filters are the drop-in type, i dont see the need to disconnect the battery after putting them in.potatojoe said:I just received my K&N filter today. It was sitting on my porch when I got home. Going out to install now. All my other vehicles I dis-connected battery after install. Anybody do that?
Which one is which? I look at the two and would not be able to tell which one is better. Just at a glance, it looks like the one on the left is built better, but I don't even know what I am looking for. Please educate me.potatojoe said:Look at the difference of surface area between K&N and stock.
could be a pre-filter.... just a guess!!!potatojoe said:What do you guys think the purpose of this filter thing is in the top of air cleaner housing? Silencer??
i second to that.... thanks Potatojoe for the pics, keep up the mod. :thumb:wearefla said:Thanks potatoejoe! The k&n might stop more particles with the filter oil and heavier construction, but stock looks like it would breathe better.
With just a drop in oiled type filter with factory intake, I would be surprised if any increase in mpg on a 4000 lb machine with V6. I have S&B CAI in my Pony and record 2 mpg more vs factory Intake with std filter. sbfilters.com, meets ISO TEST standards. I would be looking for CAI system, if anyone would produce for around $200.00, not expecting much. It would sure sound nice though when you tromp in it!RedRocker said:Just put the new K&N in last night. Next week we are taking a road trip we've taken many times with the Acadia...I can't wait to see if this filter makes any difference in fuel mileage, pulling power while in cruise as the vehicle crests the overpasses and general driveability.
I've had K&N's in the past and I do believe they add more air to the engine. My guess is this 3.6 is smart enough to take advantage of that added air. Next week we will find out if it's cold air or just a bunch of "hot air". Either way...I will save money on air filters.
Apparently they DO let in more dirt, as a forum member has found at the Enclaveformum here: http://www.enclaveforum.net/index.php?topic=468.msg24908 and subsequently blown off as insignificant! How the heck he knows the bump in silicates makes little difference is beyond me. Reports by mechanics of fouled mass air flow sensors (MAF) are also found: http://forums.tdiclub.com/showthread.php?t=192652&highlight=fouled+MAF and http://forums.tdiclub.com/showthread.php?t=196178&highlight=K&N+MAFSnoguy said:A question in my mind has always been if K&N filters flow more air to the engine, do they also allow more dirt into the engine? Although a lot opinions about this issue seem to exist, it seems to me that more flow = more dirt. If more performance (maybe only about 1% from what I have read) is what you want, but at the expense of longer engine life, then perhaps the K&N is the right filter to use. I personally have never used a K&N, but I will probably wait for a synthetic media filter such as Amsoil or Baldwin to become available if I want to change filter media. It seems to me that doing a used oil analysis is a good idea when using a K&N just to confirm what the dirt(silicon) contaminant level in the used oil really is.
I hope you're talking about removing the filter and NOT the MAF sensor!! :blob:bonk1313 said:..... It is a $58 part on GMpartsdirect, just not sure I want to take the chance of damaging it or replacing it, so I might be removing it shortly.