Since I researched quite a few of the drop-in air filters available for our cars, I think this board needs a one-stop thread that lists out all of the options in one place. If I've missed a filter or you'd like more information, let me know and I'll update the list. I've updated the listing with typical pricing I found on the net, if you spend time researching you might find better deals. As for reviews of each filter type, this is something I can't really provide, but if any members wish to contribute feel free!

Performance Drop-Ins:
AFE Pro Dry S Filters
Part Number: 31-10196 (pair)
Style: dry 2-layer synthetic
Reusable: yes
Price estimate: $98.95 (pair)

AFE Pro 5 R Filters
Part Number: 30-10196 (pair)
Style: oiled 5-layer cotton gauze
Reusable: yes
Price estimate: $99.95 (pair)

Cosworth Performance Air Filter
Part Number: 20005381
Style: 1-layer pleated dry polyester
Reusable: yes
Price estimate: $43.00 (each)

HKS Super Hybrid Filters
Part Number: 70017-AN004
Style: 3-layer dry foam
Reusable: no
Price estimate: $54.00 (pair)

K&N Air Filter
Part Number: 33-2399
Style: oiled cotton gauze
Reusable: yes
Price estimate: $45.00 (each)

BMC Air Filters
Part Number: FB483/20
Style: oiled cotton gauze
Reusable: yes
Price estimate: $165.00 (pair)

Mine's VX Air Filters
Part Number: MN-006
Style: oiled 3-layer cotton gauze
Reusable: yes
Price estimate: $318.00 (pair)

Airaid SynthaFlow Air Filter
Part Number: 850-014
Style: oiled 5-layer cotton gauze & 1-layer synthetic mix
Reusable: yes
Price estimate: $50.00 (each)

Airaid Synthamax Dry Air Filter
Part Number: 851-014
Style: dry 2-layer synthetic
Reusable: yes
Price estimate: $57.00 (each)


OEM Drop-Ins:
Infiniti OEM Air Filters
Part Number: 16546-JK20A
Style: dry paper
Reusable: no
Price estimate: $14.70 (each)

WIX AIR Filters
Part Number: 49362
Style: dry paper
Reusable: no
Price estimate: $8.95 (each)

 

tks for the compilation . . .

 

reviews pros cons for each?

 

Thank you, average cost would be nice, maybe too much work...

 

i can't find the HKS one for $54 anywhere...

 

Afe>>>>>>

 

I had the cosworth filter and it was pretty legit. No problems there.

 

Which one is the best. I am thinking of getting the HPS silicone air intake tubes and a good set of drop ins instead of an air intake for $500 that barely give any gains.

 

i have hps tubes with k&n filters and they work good

 

Good idea to start a thread like this but it isn't helpful if we don't know how each performs. Googling drop-in filters would get us the same results.

 

just thought id let everyone know, right now at autoanything.com, they have a PAIR of the AFE Pro Dry S filters at $83 shipped!

 

Thanks! Just ordered a pair.

 

Which one - dry or oiled?

 

The dry ones.

2008-2011 Infiniti G37 Air Filters - Custom Fit - aFe 31-10196 - aFe Pro-Dry S Air Filters

 

I'm currently running a set of these and they are excellent high-quality reusable filters. Didn't see a huge gain because they are just drop-ins, but a nice 'dry' alternative to K&N.