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HKS on mine - recommended as better even than K&N and just a slot in into the standard panel boxes. Not sure if HKS are available in the US, but most decent specialists in the UK will get them for you
I use UPGR8 dry filters in the stock air boxes. Works well as I noticed a slight increase in power way better than K&N drop ins. You can clean them with clean water - even better they don't cost stupid arm and leg prices like K&N etc etc. And yea, if you use the stock air boxes, don't bother with big buck filters cause testing done didn't do better than paper.
I use UPGR8 dry filters in the stock air boxes. Works well as I noticed a slight increase in power way better than K&N drop ins. You can clean them with clean water - even better they don't cost stupid arm and leg prices like K&N etc etc. And yea, if you use the stock air boxes, don't bother with big buck filters cause testing done didn't do better than paper.
Where do you order them from? I went to their website and it doesn't appear that they make/stock anything for a G37 application?
Placebo, sorry.
Unless you change the tubing / maf mapping / tuning, it's all in your head.
Most mods noted are just lighting up your wallet weight, surprisingly those UPGR8's really had a slight power increase that I didn't actually expect since I bought them because they were cheaper than Infiniti replacements.
could jus be that its a new filter and ur old one was dirty and flowing as well and any filter thats new woulda provided better flow or u think theres an improvement and driving the car more spirited
could jus be that its a new filter and ur old one was dirty and flowing as well and any filter thats new woulda provided better flow or u think theres an improvement and driving the car more spirited
The old filter was clean, but since I didn't know how old they were was why i just replaced them. Anyway, what the new filter did was get rid of that annoying throttle hesition/response from idle that these cars are famous for! The throtte is now a little more peppy now while driving, but no I wouldn't win at Sebring!!!
i replaced mine with R2C Black Hex "dry" drop-in filters.
"oiled" filters (K&N, etc.) do NOT filter as well, and can foul the MAF sensor if over-oiled.
Whats the benefit of the drop ins? I accidentally got them instead of the replacement filters for the intake. Should I keep them? or just go with the replacement ones?
Over oiling is not a filter problem, but a user problem...
true, but no real science to say when there's not enough oil or too much. probably doesn't matter much on the G37, because for CAI's, they are pretty far fom the MAF sensors. probably more of a problem with hot air intakes.
K&N filters seem to filter just fine on the G37
that video made no sense - why would the air filter be expected to filter out iron, lead, and silicon ... these are particles produced by the engine ... for the OIL filter to deal with.
here's a more scientific analysis:
Filtering Efficiency:
Filtering efficiency is a measure of the filter’s overall ability to capture dirt.
Accumulative Capacity:
“Accumulative Capacity” is a measure of dirt holding/loading capacity before reaching the maximum restriction limit.
Initial Restriction + 10 IN-H20.
and most importantly .... Accumulative Gain:
“Accumulative Gain” is the total amount of dirt that passed through the filter during the test.
that video made no sense - why would the air filter be expected to filter out iron, lead, and silicon ... these are particles produced by the engine ... for the OIL filter to deal with.
The video states that poor air filtration shows up as high silicon levels in the oil.
This results in increased engine wear that shows up as higher lead, iron and aluminum levels in a used oil analysis, due the silicon (sand) in the oil.
I think the video is more fact based than those old images of some air filter for a GM truck.
If you really want to know how well YOUR air filter works on YOUR car, in YOUR environment, get a used oil analysis and see for your self.
For me, I don't live in a very dusty area and my K&N filters work just fine. My Silica levels are just slightly below 30 PPM.
02-15-2017, 12:31 PM
