My 2015 Turbo has BMC filters installed by the previous owner. They are quite a hassle to maintain. You have to clean and regenerate them every 15k miles according to BMC. All the research I am doing suggests that Porsches don't really benefit from aftermarket air filter's. Car has a Cobb tune but is otherwise stock. So what say ye? Should I just go back to stock and be done with the hassle?

Thanks

 

Stock plenty good. The 911 guys I frequented last 32 years said no benefit. Like carbon intakes in the engine bay.

 

^^^ Agree……stick with stock. If the engine were HEAVILY modified and thus ‘airflow limited’ by the stock filters there would be some benefit to higher flow aftermarket filters, but it’s not. You have only a tune (no modified hardware…heads, cams, etc.). The stock filters flow more than enough, along with with manufacturer tested/proven filtration ability.

 

In general, the OEM filters are fine and there are minimal improvements with just replacing air filters with no other modifications such as a tune or whatnot so if you prefer to set it and forget it every 40K miles, sell the BMCs in the classifieds and go back to the paper OEM elements. I no longer use oiled filter elements because of the cleaning hassle and potential for the oil to foul up sensors. I use Flat 6's dry elements. Best of both worlds with better flow and "lifetime" filter that I don't need to buy and replace. They need to be cleaned every 15K miles (which is about every 18-20 months for me) but much easier than oiled ones. Just soak in a bucket of water with dish soap and then gently rinse from inside out. Reinstall once dry. I don't drive through dusty areas so I don't need the protection with the oil. https://flat6motorsports.com/product...-filters-macan

 

Thanks yeah I saw the Flat6 filters. They claim a 10hp bump, however I am skeptical of that too. But I would prefer having those over oiled.

 

If those yield a repeatable 10 HP bump over stock, Porsche needs to fire some engineers along with the HR people who let them in the door.

 

LOL! I agree that 10hp increase is probably optimistic but do understand that engineering a car for all different parts of the world with all different kinds of climate and inconsistent fuel qualities means that they have to build in safe guards so if a filter element that has to protect from a wide range of external elements while balancing service life means leaving a few horses on the table, then that's what they will do.

 

I thought BMC filters were dry non-oiled filters, unlike the K&N. I use properly oiled K&Ns in all my cars but most are heavily modified. In yiur case the stock filter or a dry aftermarket filter will be fine.

 

I know my BMCs are non-oiled and really easy to clean. I'm a big fan of treating motors like ... well ... air pumps. Lots of clear air in ... lots of air out. The OEMs were fine (hindsight) and the BMCs are cleanable. I've been known to cut on cars to improve airflow, including my Macan, regardless of filter. Meh, I've paid more for less.

 

All BMC filters are oiled.

 

True out of the box, pre-oiled. I said mine were non-oiled. The first clean and dry removed the oil. No recharge since. Only clean/dry. I've been doing this for years on my K&N and Airaid air filters for high horsepower turbo or supercharged V8s and 4cyl motorcycles.

 

I’m a stock paper Oem guy. I take them out twice a year to inspect and knock out any junk. I did replace them at last plug change. Old ones still looked fine.
I do sometimes find, you get more intake sounds coming from some of the performance filters.
If you do change change out your fancy filters, they will sell fast. Said funds should buy you a few sets of new oem filter.