aFe Cold Air Intake STG 2

[onefastman]

Originally Posted by HP Autowerks

I found it hard to believe myself, I posted the words straight from the horses mouth. Whether you gain 18rwhp or 9rwhp the point is that you are removing a restrictor in your intake track, so should you decide to add an exhaust, tune, etc, your engine will already be flowing properly in order to take advantage of those supporting/additional mods.

Anything you do to your M3 is works as a part of a system. You'll maximize your benefits by upgrading each equally.

The problem is whether it is 18hp or 3hp (or less)

[HP Autosport]

Originally Posted by onefastman

The problem is whether it is 18hp or 3hp (or less)

Just their drop in filter has been proven for 6whp by independents.

-Tyler

[swhat]

that is disappointing. i was hoping for 10

[Ant Man]

Originally Posted by HP Autowerks

Should have clarified guys, it is up to 18hp and 15tq.

I just spoke with aFe and they said that their shop M3 produced these numbers on their in house dyno.

Numbers will vary from car to car but you will see the most gains with this intake when paired with exhaust and tune.

I think the numbers are comical but worst are the 'joke' tuners that think we'll believe such nonsense. Unfortunately some do, rpi scoops anyone.

Even the enlarged carbon plenums don't make this increase. Let's see the results (for the airbox alone) when it's tested on an independent dyno and no need for a remap. I reckon the outcome will be similar to the technocraft crap pipe

[Ant Man]

Originally Posted by HP Autowerks

Just their drop in filter has been proven for 6whp by independents.

No way!

Harold, is this you? If so, I understood you were a knowlable chap?

BMC filter makes 2-3 bhp at the crank. BMC make filters for F1.

There is no way that a drop in filter makes 6 bhp at the wheels. Which indy dyno'd it and let's see the graphs and info on the runs to see if they were rigged?

[Kyoshi71]

Originally Posted by Ant Man

I think the numbers are comical but worst are the 'joke' tuners that think we'll believe such nonsense. Unfortunately some do, rpi scoops anyone.

Even the enlarged carbon plenums don't make this increase. Let's see the results (for the airbox alone) when it's tested on an independent dyno and no need for a remap. I reckon the outcome will be similar to the technocraft crap pipe

Perfectly Stated.

But why do these "joke" tuners think we'll believe this nonsense? I have one explanation. Although there are some very knowledgable folks here, a good majority of people who post are kids who dont know shit outside of message boards. It's unfortunate because some companies do take advantage of people with these bullshit HP numbers.

The stock airbox is a fantastic design that, on a stock engine, would be extremely hard to improve upon. Funny how you mentioned it but, when reading this thread the first thing I thought of was the good 'ol Envy Charge Pipe. What a BS story there, huh?

[BPMSport]

I received mine the other day as well, and will be designing custom suited software for it + the akrapovic exhaust combination.

Look for my full writeup in the comming weeks. My initial impressions are that bottom end torque noticeably improved. You can also hear the motor slightly more above 6K rpm. So far I'm happy, but we will not know the exact gains until she goes on the dyno for testing.

[Ant Man]

Originally Posted by Mike@Powerchip

I received mine the other day as well, and will be designing custom suited software for it + the akrapovic exhaust combination.

Look for my full writeup in the comming weeks. My initial impressions are that bottom end torque noticeably improved. You can also hear the motor slightly more above 6K rpm. So far I'm happy, but we will not know the exact gains until she goes on the dyno for testing.

Software not need for the changing the air filter, the ecu is more than capable of dealing with more air. If you are removing the front cats, then to make the most of the decrease in back pressure, the engine will benefit from a remap.

I'm amazed you can feel a torque difference as that must be a good increase to be noticeable. What MPH do you feel the improvment at these low RPMs?

[BPMSport]

Originally Posted by Ant Man

Software not need for the changing the air filter, the ecu is more than capable of dealing with more air. If you are removing the front cats, then to make the most of the decrease in back pressure, the engine will benefit from a remap.

I'm amazed you can feel a torque difference as that must be a good increase to be noticeable. What MPH do you feel the improvment at these low RPMs?

We're changing the filter, and the intake boot going to the manifold- which is considerably larger than the stock one.

It's not absolutely necessary, but that doesn't mean that more power can not be had with some fine tweaking (especially in conjunction with HFC's, which my car currently has).

I just notice a general improvement in pickup, particularly between 2 and 3k RPM. But it hasn't been dyno tested yet, so my opinion is at best, speculative.

Like I said above, we wont know for sure until the car is on the dyno. I'm planning on taking off my Fabspeed cats and x-pipe, and putting the Akrapovic full system on. Then I will dyno the car without making any changes to anything. Then I will remove the AFE intake and put the stock setup back on with the MS filter I had in before. If the dyno shows a loss of power or torque after that, it will be clearly attributed to the intake.

[xchosun1x]

that sounds like a good plan Mike...i'll be contacting you soon for some ecu tweaking!

[advans]

I have the MS filter, scoops, eAs CF airbox, friend noticed that my car pulls slightly quicker around 60ish. I doubt the aFe will add power, since I was one of those guys that hesitated to get the CAI (full refund CAI as stated in above post). Luckily I didn't.

But then again, any good SOUND comparisons, from stock and aFe? if it sounds like the gruppeM i'm in.

[HP Autosport]

Originally Posted by Ant Man

No way!

Harold, is this you? If so, I understood you were a knowlable chap?

BMC filter makes 2-3 bhp at the crank. BMC make filters for F1.

There is no way that a drop in filter makes 6 bhp at the wheels. Which indy dyno'd it and let's see the graphs and info on the runs to see if they were rigged?

This is actually Tyler. My mistake, I actually mixed up a couple products. I have not seen a dyno graph with only an intake filter installed.

Sorry for any confusion on numbers.

[powertrip]

Well curiosity got the best of me . I went ahead and installed the AFE intake today. Here are some of my observations:

1) Fitment is very nice, and there is a good amount of adjustability to get it just right.

2) Visually the intake is just what the doctor ordered. It fills the engine bay much more thoroughly, and the plastic better matches the factory engine cover.

3) After a full examination post install I took it out for a run. I noticed a loss of torque down low, and my idle was bumped up by approximately 150 rpms. I've seen this before, so I went to an area with very little traffic and performed several full throttle runs to let the DME make some adjustment. After around 20 miles the idle was back to normal, and the engine was much more responsive and eager to rev all the way to redline.

So far I think this is a keeper .

[Ant Man]

Originally Posted by powertrip

Well curiosity got the best of me . I went ahead and installed the AFE intake today. Here are some of my observations:

... so I went to an area with very little traffic and performed several full throttle runs to let the DME make some adjustment. After around 20 miles the idle was back to normal, and the engine was much more responsive and eager to rev all the way to redline.

So far I think this is a keeper .

Do you think the full throttle runs without changing the filter would have made the engine feel more responsive and eager anyway due to the way it 'adapts'?

We really need to see this product on an independent dyno (not linked in any way to the tuner / seller of the product) and see the before and after power runs with all the details. Very easy to produce false HP increase on dynos as a means to sell products (such as tested in wrong gear / strapped down too hard etc) but when given all the info, it's possible to spot the 'rigged' graphs.

[BPMSport]

Originally Posted by powertrip

Well curiosity got the best of me . I went ahead and installed the AFE intake today. Here are some of my observations:

1) Fitment is very nice, and there is a good amount of adjustability to get it just right.

2) Visually the intake is just what the doctor ordered. It fills the engine bay much more thoroughly, and the plastic better matches the factory engine cover.

3) After a full examination post install I took it out for a run. I noticed a loss of torque down low, and my idle was bumped up by approximately 150 rpms. I've seen this before, so I went to an area with very little traffic and performed several full throttle runs to let the DME make some adjustment. After around 20 miles the idle was back to normal, and the engine was much more responsive and eager to rev all the way to redline.

So far I think this is a keeper .

Very strange that your idle was affected at all. Considering there is barely any air induction at idle, I'm not sure why there was a difference. I doubt the DME would notice any change in manifold absolute pressure at idle, stock intake, or AFE. The difference in MAP would most likely come into play during the intake stroke when the motor is sucking in air through the system.

Mine showed no change whatsoever during idle before/after intake.

[powertrip]

Each car is different I guess . I'm very pleased with the performance of the intake so far. The car definitly feels more reactive especially in the midrange.

Originally Posted by Mike@Powerchip

Very strange that your idle was affected at all. Considering there is barely any air induction at idle, I'm not sure why there was a difference. I doubt the DME would notice any change in manifold absolute pressure at idle, stock intake, or AFE. The difference in MAP would most likely come into play during the intake stroke when the motor is sucking in air through the system.

Mine showed no change whatsoever during idle before/after intake.

[Fsarc]

What version of the AFE Intake did you guys order- oiled or dry filter? Thanks.

[powertrip]

I ordered the dry filter.

Originally Posted by Fsarc

What version of the AFE Intake did you guys order- oiled or dry filter? Thanks.

[Dave07997S]

Originally Posted by powertrip

I ordered the dry filter.

I got oiled..since the S65 has no Mass Air to foul.

Dave

[powertrip]

Good point bro . I really like the dry because they filter really well, and maintenance is a snap. I've had both versions of their drop-in filters and they were both great.

Originally Posted by Dave07997S

I got oiled..since the S65 has no Mass Air to foul.

Dave

[novablackm3]

i think this is a better design than the envy charger with similar concept/design as the dinan at lower cost. One thing you'll notice right away is better throttle response with any increased intake pipe.

[kitw]

I just dyno'd my AFE stage 2.

I put the intake in and drove around with it for a couple of days, then stuck it on the dyno. Made 365/366rwhp. I swapped in the stock intake tube and the stock 2011 air filter (basically brand new) without the carbon filter, and made 360rwhp. So, 5-6rwhp difference.

Not a huge gain, but it's there and it's a touch more than the dropins make. I'll leave it up to you to decide if it's worth the money... I'm gonna put mine up for sale.

Here is the dyno chart showing the difference. Run003 was with the AFE and Run004 was with the stock filter and intake tube.