For those of you with a 4" turbo inlet: what filter do you use?

[ATL88Supra]

supraguy, use the stock intake i have seen NO downside from using it plus its a CAI

 

[GrimJack]

Do you have it clamped on? When I put it on it would stay, but when I tightened my clamp it wanted to pop off. Also couldn't force it past the bead, so I didn't end up using it. I tried and tried to get that to work, but it just wouldn't lol.

What's the length on that? If it'll fit in my engine bay, I'd likely take it off your hands.

The K&N is not a good filter. It gives you great airflow, sure, however, it doesn't actually filter anything smaller than pea gravel. It'll work fine in ocean climates, or any place with high humidity, but where it matters, use one of the filters that works - AEM and Blitz are the best, IIRC.

 

[hvyman]

Do you have it clamped on? When I put it on it would stay, but when I tightened my clamp it wanted to pop off. Also couldn't force it past the bead, so I didn't end up using it. I tried and tried to get that to work, but it just wouldn't lol.

Now that i think about it i think i had the same thing happen so i just cut the bead off and it stays on fine.

 

[GrimJack]

Correction: Apexi / AEM are the best available, but the Apexi doesn't come in a large enough size that I've found.

 

[supraguy@aol]

Correction: Apexi / AEM are the best available, but the Apexi doesn't come in a large enough size that I've found.

This is what i've come to learn. Really wanted the Apexi, for its internal design.

 

[GrimJack]

This is what i've come to learn. Really wanted the Apexi, for its internal design.

Same here, looks like a great setup! But no four inch love... so I'll buy an AEM and get one of their fancy pre-filter covers.

 

[leezymk3]

here where im going to buy mine,there lots to chose from,
http://www.knfilters.com/search/UnivOvalTap.aspx

 

[1988ma70supra]

The K&N is not a good filter. It gives you great airflow, sure, however, it doesn't actually filter anything smaller than pea gravel.

I don't think the K&N is a bad filter but the AEM dryflow has out performed the K&N in almost every test aside from airflow as GrimJack stated.

View attachment aem test.pdf
The tests were done with filter size 4" inlet & 9" tall accross the board

It was more convenient for me to get the K&N at the time since it was available locally and I was test fitting in the parkiing lot. Although if i had done my homework and checked for fitment ahead of time; I would have definately gone with the AEM dryflow. I personally decided to add a prefilter to help with filtration and liquid contamination.

 

[supraguy@aol]

Old-ish thread, but for the record, i ended up getting the AEM dry-flow filter.

 

[hvyman]

That is what mine looks like. The aem dry flow filters are awesome. Been using mine for about a year and a half and it still looks new.

 

[jetjock]

^ Now that's entertainment

 

[hvyman]

Well I don't live in a dirt field.

 

[TaylorRacing]

I'm not sure you guys have the room but i am using a Napa 6637 dry filter. its large but is thick and reasonably priced.
cross referenced the part numbers too in case you have connections through other avenues



ACDELCO A1474C
AIR REFINER ARM08-5011
BALDWIN FILTERS PA2818
BIG A 94637
CATERPILLAR 3I0003
CARQUEST 88637
CUMMINS 2912986
CUMMINS 3912020
DONALDSON B085011 H
DONALDSON ECBO85011 H
DONALDSON ECB085011 H
FLEETGUARD AH1141
FLEETRITE AHR81141
FRAM CA6818
GFF AF359214
GENERAL MOTORS CORP. 25177209
HASTINGS PREMIUM FILTERS AF2329
HERCULES B085008
KRALINATOR LA1458
LUBER-FINER LAF2533


here is a picture of mine, this was mach up before making my mounting brackets but you get the idea on the size