I am pretty sure you can modify the piping if not the fog bracket a little to make it fit. Or you can make an adapter that turns it to a side. I can understand people that cant justify cutting into the v2 intake after spending all that money on it. Unfortunately they only make a 5" or 9" filter with a 4" diameter pipe. If you had a 5" they have a 7" filter lol just need to make a slight adapter.

 

HA! How about that V1 now!

Just kidding guys...I was jealous when they came out with a V2. I'm always worried the "V2"'s are gonna find a couple more hp.

 

Does anyone think this one will be a better flow than the AEM? It's 4"filter, so it should fit the V2. However it is 10.25" long.

Fujita Super Flow High Performance Replacement Filters - P/N: F5-400L

http://www.advancespeedshop.com/fuji...0l-p-1804.html

 

10 in seems kinda excessive and might not give enough clearance. You never know might be able to get away with it by shortening the pipe.

 

That was my way of thinking as well, but I didn't want to disrupt the design of the V2 or something.

Just trying to verify if the Fujita filter would be a better flow than if we use the long filter in place of the AEM.

 

I was going to keep my thoughts to myself but I'm never good at that.

Some of the results are contradicting here. The TL is only requiring 150 or so CFM at 1/2 throttle. You won't see a difference in power from an old dirty stock filter to an open pipe with no filter.

A 5" filter is overkill already. A 9" filter was fine until I surpassed 600 crank hp. I've always kept close tabs on pre-turbo (between turbo and airfilter) vaccum because it plays a big role in turbo efficiency and charge air temps. I can say with a 9" and 500hp there's very, very little vacuum in there.

I don't see how going from a filter that flows over 600cfm to one that flows 900cfm on an engine that flows 300cfm will make a difference.

 

On another note, this forum seems so focused on the best CAI or best airfilter. The only requirements are something that filters ok, fits the car, takes in air from outside of the engine bay, and outflows the requirements of the engine.

Sweating small details is pointless. I would go for the cheapest kit that fulfilled the basic needs.

Save the worrying of details for the turbo kit.

 

I would just run a velocity stack and call it a day lolz but I daily drive the car so not the wisest idea. panty hose it is! But really I ran a cheap ebay filter on my old setup and it did pretty well until the glue decided to separate off the filter lol then I just bought the AEM dryflow and it worked pretty well. Thats what I have on the TL now with the Injen intake.

 

The 10" Fujita filter would require for the plastic liner to be cut almost entirely away from under the filter. The AEM oversize filter is listed as 8.8 inches to be exact, and the AEM just squeezes into that space.

Performance wise, I would say that each person would need to try it for themselves. As we see here with me geting huge gains from the overside AEM, others guys that try it might not see the same gain. We each tweak the tune of our TL with various performance mods, creating our individual delicate tuning balance. When you tweak a highly tuned engine, it is hard to predict how that delicate balance (being highly tuned already) will react to minor tweaks. With a highly tuned engine, you just gotta "try it on".

 

True. There would be a better comparison if someone did a before and after with a dyno run on each setup. Do a 3 pull for each and see what the average was. Then you can overlay both graphs to see if it really made a difference. I got a cheap velocity stack sitting around the house. I have another AEM filter for it laying around just gotta find it lol.

 

I agree with "I hate cars" regarding theory. I am an old-school hotrodder. I am more than familiar with the basics of building and tuning racing engines. Again, I agree with "I hate cars" regarding theory.

However, as I said in my previous post directly above, it comes down to just trying it. That is what racers do too. Once you get the basics taken care of, it comes down to "running it down the strip" to work out the details. Many times "running it down the strip" tells you something totaly different than what "should" happen (theory wise). I did not expect any gains at all when I first purchased the oversized filter because, in therory, I should have recieved zero gain... and that is what I expected. However after driving my car, and seeing what the engine told me, I would be willing to pay $500 for this oversize filter to recieve the gains that I got from it.

Cheers

 

I guess what I'm getting at, are you sure it's not just the placebo effect?

Did the location change much, more specifically, is it possible it's getting air from a cooler spot?

One other possibility is we know the cone filters smooth airflow. I wonder if the airflow is smoother and the approach angle is better from the end of the cone to the entrance of the tube.

The main thing I'm saying is if there is a power gain, I'm 99% sure it's not due to better flow.

I agree with theory being good but real world testing being more important.

 

I throttled my car hard all day today. I'm battling with a seriously spongy low end since installing my ATLP cat back - hope it's a back pressure issue and the Aero resonator helps a bit.

anyway, I've been feeling better about top end lately as I've been really impressed how hard it pulls through 100mph in 3rd. My 5" filter was pretty dirty and I although my engine is breathing better, I didn't get a noticeable performance boost. However, I definitely didn't lose any, either.

on a disturbing note, I barely closed on a VW Rabbit 2.5 (!) today from about 60-90. I did notice a tell-tale puff of black smoke when he punched it...really hoping it was boosted. Only saving grace was the cop that I thought for sure was coming for me followed him off the interstate.

 

I hate cars,

The placebo effect is a rough topic. By definition, if it was the placebo effect, I would not be able to say either way. LOL... shrug.... moving on....

There is no change in location that would effect quality of the ingested air.

With you next two points.....now we are getting somewhere. Reduction in Air turbulence, more favorable resonance of the airflow (changes in scavenging), and Not CFM. I agree completely with your points.

Getting back to the possible placebo effect. I drive the same route each day (ie, my daily commute). My weekly mileage deviates by 0.0 miles from week to week. I reset my trip odometer every Monday morning. It has the same reading each time, down to the tenth of a mile.

I use the same lanes each day. I even change lanes in the same spot each day. I WOT in the same spot each day. I drive like grandmom in the same spot each day. Sorry... you get my drift by now. So, yes, I can easily spot any change in performance because I do the IDENTICAL thing, day after day.

But, if it is the placebo effect, I hope it does not go away.

 

I didn't mean that in an offensive way, hope I didn't come across that way. I know you know your stuff but you see the posts where someone changes over to a synthetic oil and gains 100hp according to the butt dyno lol.

I'm have to be very careful myself because I would swear the car feels faster and smoother when it's clean and detailed vs muddy from driving through the oil fields.

 

I hate cars,

No offensive taken. I apperciate your contribution to the thread.

 

A clean car is faster than a dirty one...that's just science.

 

UPDATE



Fast forward to two years later.........


Today, I performed a long overdue filter replacement of my oversized filter. I replaced it with another of the identical size (oversized).


AEM is now offering two versions of this filter size -

21-2109DK = Dyed with a red coloring and has with wire screen mesh for support.

21-2109BF = AEM's "Brute Force" style with an internal plastic cage for support and no wire mesh. It is white/grey colored.


To provide more clearance for the oversize filter, I modified the black wheelwell liner. I removed a section of the hump molded into the liner.

 

Looks good man. Just watch the puddles! That is if you ever get them in the dust bowl lol

 

Ill take a pic of mien sometime. I got a 6in inlet and a 5in filter. I am running it on that previously said velocity stack.

 

After three weeks I finally received my oversized filter. Mine was on backorder.

I got the same one, red with mesh. I didn't know they teamed up with K&N to produce this.

And after seeing this thread again-----I totally forgot about my fogs. I hope I can clear the room still!

 

been on the things to buy list for wayyyy to long now...

Matching the Brute Force Black filter with the custom 3" s/c cai.

http://www.aemintakes.com/search/pro...Prod=21-2039BF