AWE S-Flo Intake Filter

[Mister_T_]

I'm sure there are some people here that have swapped the OEM filter for the S Flo....?

Is there any noticable difference in regards to performance?

[HeelBuff]

I did and I don't know. Hopefully this weekend the track will be open then we will find out.

[Mister_T_]

Right on, enjoy yourself!! if you ARE able to get some track time, please reply back with some feedback.

[zee007]

I have just the filter. Gotta say, I'm not sure I could hand on heart tell you there's a difference. At best - it's small. It does amplify the turbo whistling sounds should that be something you're interested in...

[Mister_T_]

Thats kinda what i expected to hear, Thank you sir

[bobs]

HUGE gains if tuned and with exhaust. Don't know about stock. I gained 100 ft/lbs and 80 hp at 3000 rpm. Amazing difference!--I have an APR tune and AWE exhaust.

[mik34]

^ with just the intake??? That doesn't seem possible!! Guess I need to get one of these things.

[Brooklyn]

Pretty sure he's referring to the combination of tune, exhaust, and intake.

[mik34]

That's what I thought until I saw this thread:

http://www.audizine.com/forum/showth...AG-Motorsports

[eyeloveteeth]

i don't even see how that is physically possible...

[AudIan]

AWE claims max 21 at the crank, so ~5 or so at the wheels?

And to realize those gains, you really have to have the tune as well.

[HyperM3]

AWE claims max 21 at the crank, so ~5 or so at the wheels?

And to realize those gains, you really have to have the tune as well.

Which in reality is zero gains on a stock car. Not to be a Debbie Downer but I think the reality of this mod has to be fully exposed. Spending $900 on an intake is a serious lump of change and if you only get something pretty when you open the hood once in a while, you definitely have to decide if its worth it or if you plan on going the full mile spending a couple grand to get maximum gains.

[moosehead1]

^+1 to Hyper. Really nice noisemaker.

[eyeloveteeth]

Well they aren't selling it as a pure performance booster.

But yeah, this is clearly for those that want every little part.


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[AudIan]

Yes to all of that, and it is certainly a pretty piece that looks very sexy under the hood. For me it would just be carbon bling, and matched with a CF engine cover that is supposedly in the works, might be worth my money. On the other hand, if you are trying for max gains, with full exhaust, tune etc, then it seems like it will give you measurable gains and might be worth it. As the saying goes, it's only worth what someone will pay for it. They're selling, so it's worth $1K to someone.

[Moribach]

It is pretty fun to hear the turbo's spool up!

[HyperM3]

It is pretty fun to hear the turbo's spool up!

I can do that with my couple hundred $ USP intake. But I understand if you want the farkle.

[Moribach]

I can do that with my couple hundred $ USP intake. But I understand if you want the farkle.

Oh, well ya, that works too man :)

[JB616]

I could be way wrong but I think the OP was asking about just running the $89 AWE S-FLO intake filter with the stock intake, not the entire $995 S-FLO Carbon intake kit. BMC also makes a air filter only for $119.

[///M Traitor]

I could be way wrong but I think the OP was asking about just running the $89 AWE S-FLO intake filter with the stock intake, not the entire $995 S-FLO Carbon intake kit. BMC also makes a air filter only for $119.

K&N also makes a high flow air filter that fits into the stock housing. I installed it but can't really comment on any difference because the winter here in NJ has been harsh and I havnt been driving the car much..

[Virchow]

Any difference in sound with the k&n?

[VVG]

The S-flo is a nice looking piece for sure. Whether any intake ever really produces consistent and reproducible gains is a different matter entirely. I am thinking it actually makes more of a difference on a normally aspirated motor where air is sucked into the engine and a stock intake may be restrictive.

With a turbo motor, the air is pressurized to a given spec, irrespective of what may be coming into the compressor housing, so unless the intake is super restrictive, it shouldn't make a difference. The turbo will continue to spool and build pressure until a certain desired manifold pressure is reached (based on throttle position, rpm, intake temp, coolant temp, etc) at which point the MAP( Manifold Absolute Pressure) sensor will send a signal to the ECU. This, in turn, will actuate the wastegates to open and limit further turbine activation.

Now....if you tune for the extra airflow provided by the intake, and raise the MAP threshold for wastegate activation, that would work. Basically the intake would generate a higher MAF (Mass Air Flow) signal, and this would then cause the ECU to raise the threshold MAP for wastegate activation. Maybe the GIAC tune (AWE) does this and therefore works with the S-flo to produce slightly more power? I wonder, then, if the S-flo would produce similar gains with an APR tune or not. It is a different company, and the product may not be designed to take advantage of the extra airflow provided by the intake.

But I am just speculating.

[Mister_T_]

The S-flo is a nice looking piece for sure. Whether any intake ever really produces consistent and reproducible gains is a different matter entirely. I am thinking it actually makes more of a difference on a normally aspirated motor where air is sucked into the engine and a stock intake may be restrictive.

With a turbo motor, the air is pressurized to a given spec, irrespective of what may be coming into the compressor housing, so unless the intake is super restrictive, it shouldn't make a difference. The turbo will continue to spool and build pressure until a certain desired manifold pressure is reached (based on throttle position, rpm, intake temp, coolant temp, etc) at which point the MAP sensor will send a signal to the ECU. This, in turn, will actuate the wastegates to open and limit further turbine activation.

Now....if you tune for the extra airflow provided by the intake, and raise the MAP threshold for wastegate activation, that would work. Basically the intake would generate a higher MAF signal, and this would then cause the ECU to raise the threshold MAP pressure for wastegate activation. Maybe the GIAC tune (AWE) does this and therefore works with the S-flo to produce slightly more power? I wonder, then, if the S-flo would produce similar gains with an APR tune or not. It is a different company, and the product may not be designed to take advantage of the extra airflow provided by the intake.

But I am just speculating.

Well done Sir. Speculation or not, you have a better idea than most on how engine/ecu mapping works. Thanks for that.

[VVG]

Well done Sir. Speculation or not, you have a better idea than most on how engine/ecu mapping works. Thanks for that.

Just passing on what I have learned over the years.....much of which I learned from forums such as these !!

[///M Traitor]

K&N also makes a high flow air filter that fits into the stock housing. I installed it but can't really comment on any difference because the winter here in NJ has been harsh and I havnt been driving the car much..

It is a bit louder, but does not sound like I have changed the intake housing. I can hear some turbo whistle when decelerating, and air movement when building boost..