Best aftermarket Air Filter? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

mrg666 · 08-13-2018, 08:37 PM

I think you were just pushing the throttle more to see if there was more power. There wasn't more power you were just driving to use more power. That is why mpg dropped,

Mr.ac · 08-13-2018, 10:53 PM

Quote:

Originally Posted by mrg666

I think you were just pushing the throttle more to see if there was more power. There wasn't more power you were just driving to use more power. That is why mpg dropped,

Nope. Drove like a grandma on my 60 mile commute. 65mph. All the way. At best 27mph.
Even did my own math not the dash mpg reading.

Soon as I went back to oem nice 30mpg.

But I do say my butt dnyo felt more power.

FirstWinter · 08-13-2018, 11:43 PM

Denso

norcalpb · 08-14-2018, 12:32 AM

I've been using my AVO dry filter for 110k now.

Some things to consider...a higher flow filter will give more throttle response but potentially let more debris into the engine. Does it add power? OFT recommends a high flow filter with their tunes so I'd like to think it does (when tuned).

I personally would avoid filters that need to be oiled up. I think the idea is that the oil increases filtration, but apply too much oil and you run the risk of it dirtying/ruining your MAF sensor. Also it's just more of a pain to have to add oil to a filter.

nikitopo · 08-14-2018, 02:18 AM

I like better Cosworth's filter and it was used in their stage 1 tune. They were saying that the stock filter was pretty restrictive, but probably you need also the tune to get the most of this change. In general, I don't like oiled filters like the K&N.

Mr.ac · 08-14-2018, 02:43 AM

Well, yeah oil filters if not done properly can mess with you MAF sensor.
But... zero problems on my '91 MR2 Turbo with its K&N filter for the last 10+ years.
My dads '01 Chevy pick up hads been fine for 6+ years with it.

Is it a hassle to clean? Yeah takes about half a day for it to dry properly. Then buying the recharge kit every year, yep. A hassle.

BladeRunner · 08-14-2018, 02:56 AM

Thanks everybody for your input on this. From what I gleaned from the comments is that the stock air filter is best, there's no appreciable HP gain and that an oiled air filter is not worth the hassle, expense and could mess up your MAF sensor.

So, I guess I'll stick with my OEM air filter

MCTeeJ · 08-14-2018, 02:42 PM

Late entry, but I use HKS dry foam filters. I legitimately felt a power difference, but my oem filter was so full of bugs/twigs that a new oem filter may have just as well rivaled the HKS. I don't really care either way, they aren't expensive products lol.

Tcoat · 08-14-2018, 03:15 PM

I have the TRD drop in. If you drive a lot of miles there is something to be said for a washable or reusable filter. I clean mine about every 10K so it has been done about 12 times now. Not sure what a replacement would cost for each of those times but it seems like a good investment to me. The location of the intake on these cars means they vacuum up way more crap than "normal" cars so the filter plugs up pretty quick.

DandoX · 08-14-2018, 03:25 PM

Quote:

Originally Posted by BladeRunner

Thanks everybody for your input on this. From what I gleaned from the comments is that the stock air filter is best, there's no appreciable HP gain and that an oiled air filter is not worth the hassle, expense and could mess up your MAF sensor.

So, I guess I'll stick with my OEM air filter

I think the wix filter is better, very similar to oem but more easy to install and the seal I think is better. I have been buying them for a while and I recommend trying one.

BladeRunner · 08-15-2018, 01:59 AM

Quote:

Originally Posted by DandoX

I think the wix filter is better, very similar to oem but more easy to install and the seal I think is better. I have been buying them for a while and I recommend trying one.

Thanks, good to know!

norcalpb · 08-15-2018, 01:32 PM

Quote:

Originally Posted by Tcoat

I have the TRD drop in. If you drive a lot of miles there is something to be said for a washable or reusable filter. I clean mine about every 10K so it has been done about 12 times now. Not sure what a replacement would cost for each of those times but it seems like a good investment to me. The location of the intake on these cars means they vacuum up way more crap than "normal" cars so the filter plugs up pretty quick.

So a normal air filter is $22 online and TRD is $73 online

So far you’ve saved $191 by going aftermarket.

Another thing to consider is replacing the cabin air filter with a K&N reusable filter. OEM is $26 online and aftermarket is $50. I’ve cleaned mine 5 times already so I’ve saved $80 and don’t have to deal with crappy cotton filters. My fish tank and house have carbon filters, but my car can’t? Yeah right time to go aftermarket.

lamawithonel · 08-15-2018, 05:32 PM

http://nicoclub.com/archives/kn-vs-oem-filter.html

tl;dr

Stick with an OEM-style filter unless you're willing to clean it every month.

Qwimby1 · 08-15-2018, 05:51 PM

I put a K&N in my NA 86 Porsche 944 and ran the old Bridgehampton the next weekend. I don't remember the exact numbers, but always before I had run the short chute from 5 to 6 in 4th all the way. With the K&N I ran out of revs and had to upshift to 5th. I've used them ever since.

08-14-2018, 02:43 AM	#20
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,368 Thanks: 709 Thanked 1,559 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	Well, yeah oil filters if not done properly can mess with you MAF sensor. But... zero problems on my '91 MR2 Turbo with its K&N filter for the last 10+ years. My dads '01 Chevy pick up hads been fine for 6+ years with it. Is it a hassle to clean? Yeah takes about half a day for it to dry properly. Then buying the recharge kit every year, yep. A hassle. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

08-14-2018, 03:15 PM	#23
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	I have the TRD drop in. If you drive a lot of miles there is something to be said for a washable or reusable filter. I clean mine about every 10K so it has been done about 12 times now. Not sure what a replacement would cost for each of those times but it seems like a good investment to me. The location of the intake on these cars means they vacuum up way more crap than "normal" cars so the filter plugs up pretty quick. __________________ Racecar spelled backwards is Racecar, because Racecar.

08-15-2018, 05:32 PM	#27
lamawithonel Member Join Date: Mar 2014 Drives: 2014 Subaru BRZ Ltd. Location: Mid-Atlantic Posts: 53 Thanks: 131 Thanked 36 Times in 20 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	http://nicoclub.com/archives/kn-vs-oem-filter.html tl;dr Stick with an OEM-style filter unless you're willing to clean it every month. __________________ question everythinglearn somethinganswer nothing

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08-13-2018, 11:43 PM	#17
FirstWinter Senior Member Join Date: Nov 2015 Drives: Car Location: Location Posts: 646 Thanks: 374 Thanked 422 Times in 254 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Denso

08-14-2018, 12:32 AM	#18
norcalpb Senior Member Join Date: Oct 2013 Drives: 2013 BRZ, 2023 Model 3 Location: SF Bay Area Posts: 2,345 Thanks: 1,256 Thanked 902 Times in 590 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I've been using my AVO dry filter for 110k now. Some things to consider...a higher flow filter will give more throttle response but potentially let more debris into the engine. Does it add power? OFT recommends a high flow filter with their tunes so I'd like to think it does (when tuned). I personally would avoid filters that need to be oiled up. I think the idea is that the oil increases filtration, but apply too much oil and you run the risk of it dirtying/ruining your MAF sensor. Also it's just more of a pain to have to add oil to a filter.

08-14-2018, 02:18 AM	#19
nikitopo Senior Member Join Date: Mar 2014 Drives: '15 BRZ RA Location: Greece Posts: 3,787 Thanks: 2,417 Thanked 1,947 Times in 1,263 Posts Mentioned: 29 Post(s) Tagged: 0 Thread(s)	I like better Cosworth's filter and it was used in their stage 1 tune. They were saying that the stock filter was pretty restrictive, but probably you need also the tune to get the most of this change. In general, I don't like oiled filters like the K&N.

08-14-2018, 02:56 AM	#21
BladeRunner Member Join Date: Aug 2018 Drives: 2015 Subaru BRZ Limited Location: Tucson, Arizona Posts: 37 Thanks: 12 Thanked 10 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Thanks everybody for your input on this. From what I gleaned from the comments is that the stock air filter is best, there's no appreciable HP gain and that an oiled air filter is not worth the hassle, expense and could mess up your MAF sensor. So, I guess I'll stick with my OEM air filter

08-15-2018, 05:51 PM	#28
Qwimby1 Senior Member Join Date: Nov 2015 Drives: 14 FRS Monogram, 05 Mazdasped Miata Location: Sarasota, FL Posts: 599 Thanks: 139 Thanked 150 Times in 110 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	I put a K&N in my NA 86 Porsche 944 and ran the old Bridgehampton the next weekend. I don't remember the exact numbers, but always before I had run the short chute from 5 to 6 in 4th all the way. With the K&N I ran out of revs and had to upshift to 5th. I've used them ever since.

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