[hellrotm]

That looks like a quality intake. Carbon works well with the strut brace.

[dkc1]

Originally Posted by Detoxified

I love my full AA exhaust as well on my M2C. I plan on writing a post and including videos for others to see.

That's great ! Did you also install a DP? Looking forward to your post.

[Detoxified]

Originally Posted by dkc1

That's great ! Did you also install a DP? Looking forward to your post.

No DP yet... I plan on getting VRSF dp... so I will take videos this weekend and once I get a dp in the future I'll be sure to take some more videos for comparison. I plan on getting a DP within a month or 2....

[BAN_M2C]

Originally Posted by dkc1

AA signature exhaust paired with the downpipes sound amazing !! I wonder why it's not getting as much love as the Remus/AA mid and Akra

No idea. I researched a lot before getting it and everyone with an F8X always said the Midpipe from AA did magic, but seeing the Signature having a single mid with no split again made me think it would sound even better. I know there are more people running this setup because I get a lot of questions on IG and some have purchased. They are out there just not many posted.

[BAN_M2C]

Originally Posted by Advanced

SO AWESOME!!!!!!!!!!!!!

i noticed that you're running stock dme (no tune)... since you have catless dp wouldn't that mean your car always has the CEL on? is it just annoying with the light on or does it affect the car (reliability/performance)?

Thanks!

I am running 100% Stock DME, no piggybacks no nothing. I got the CEL light a couple hours after the Downpipes were installed and it's just a light on. I always run MDM on so it's like just another light on. Has no effects on performance and the car is smart enough that if it indeed had an issue it would throw a drivetrain error to protect itself which I have never had on this car. Did on the previous one before installing bigger Intercooler.

[BAN_M2C]

Originally Posted by Detoxified

No DP yet... I plan on getting VRSF dp... so I will take videos this weekend and once I get a dp in the future I'll be sure to take some more videos for comparison. I plan on getting a DP within a month or 2....

You will love it even more with Downpipes!!! 💥

[Detoxified]

Would you say overall that this upgrade is worth it?

How's the cost factor with sound/performance in mind or you can't notice much of a difference?

[BAN_M2C]

Originally Posted by Detoxified

Would you say overall that this upgrade is worth it?

How's the cost factor with sound/performance in mind or you can't notice much of a difference?

Worth it 100% but this is more of a sound/aesthetics mod. Stock Intakes are very efficient, hard to beat OEM design but the sound is great! You can hear clearly the induction and the engine bay looks so much better with more carbon.

[Advanced]

Originally Posted by BAN_M2C

Thanks!

I am running 100% Stock DME, no piggybacks no nothing. I got the CEL light a couple hours after the Downpipes were installed and it's just a light on. I always run MDM on so it's like just another light on. Has no effects on performance and the car is smart enough that if it indeed had an issue it would throw a drivetrain error to protect itself which I have never had on this car. Did on the previous one before installing bigger Intercooler.

what the heck! then i may as well get the dp... only reason i was holding out was because i thought the cel and no tune would affect the car negatively... but after hearing it from you i guess not!

since you have no tune, did installing the dp give you any increase in power? is it enough to feel a difference even without a tune?

[BAN_M2C]

Originally Posted by Advanced

what the heck! then i may as well get the dp... only reason i was holding out was because i thought the cel and no tune would affect the car negatively... but after hearing it from you i guess not!

since you have no tune, did installing the dp give you any increase in power? is it enough to feel a difference even without a tune?

You will feel and increase in power, but you won't get the full benefit until it's tuned. Probably let's go 20-25whp just by slapping them on.

[Advanced]

Originally Posted by BAN_M2C

You will feel and increase in power, but you won't get the full benefit until it's tuned. Probably let's go 20-25whp just by slapping them on.

true true!

and sound wise, the catless dp really opened up the sound (significant difference or just by a little)?

i already have the full aa exhaust now, and it sounds good! i want to get the aa dp, so wondering if with the dp is gonna sound even more boss?!!! like i'm sure it will, just wondering how much more enjoyment i'm going to be getting out of it... haha

[BAN_M2C]

Originally Posted by Advanced

true true!

and sound wise, the catless dp really opened up the sound (significant difference or just by a little)?

i already have the full aa exhaust now, and it sounds good! i want to get the aa dp, so wondering if with the dp is gonna sound even more boss?!!! like i'm sure it will, just wondering how much more enjoyment i'm going to be getting out of it... haha

Check my thread of the AA review, got those questions so much that I tabulated sound levels with the different parts and different drive modes!

[Alfy]

Originally Posted by Megator

The stock air boxes take some air in from either side of the rads at the height of the kidneys.

This is true for the F8X M3/4 but not the M2c..

I was surprised to discover that my car doesn't have any air inlets behind the kidney grills.

After analysing the front bumper, I spotted narrow inlets that sit perpendicular to the oil cooler behind the lower grill (not the brake ducts) and they seem to direct air to the intakes.

Someone opened a thread about this previously

https://f87.bimmerpost.com/forums/sh....php?t=1633483

I think it's wise to cut openings behind the kidneys to optimize the airflow.

Check out the pic I took from inside my kidney grills..

[Alfy]

This is a side by side comparison between the M2c & M4 intake from realoem.

Notice how parts 15 & 16 on the M2c intake don't attach to any duct..

I wonder why BMW ditched the air inlet elbows on the M2c???

[Megator]

Originally Posted by Alfy

This is a side by side comparison between the M2c & M4 intake from realoem.

Notice how parts 15 & 16 on the M2c intake don't attach to any duct..

I wonder why BMW ditched the air inlet elbows on the M2c???

Have you got a pic of where the snorkel goes on the M2C?

I would personally not add holes, as I stated in the other thread the lack of holes should up the pressure ahead of the rad and therefore increase it's efficiency.

The minuscule gain in performance and throttle sensitivity are not worth it in my opinion.

[SEAT TIME RULES]

Originally Posted by Megator

Have you got a pic of where the snorkel goes on the M2C?

I would personally not add holes, as I stated in the other thread the lack of holes should up the pressure ahead of the rad and therefore increase it's efficiency.

The minuscule gain in performance and throttle sensitivity are not worth it in my opinion.

I'm the one who posted the other thread. I opened up the holes where the scoops should attach. I noticed a drop in intake temps after doing so. I also noticed that there is less room for the elbow piece to fit in the M2c vs the M3 or M4. The headlamp assemblies are closer on the M2c to the center opening..

[Megator]

Originally Posted by SEAT TIME RULES

I'm the one who posted the other thread. I opened up the holes where the scoops should attach. I noticed a drop in intake temps after doing so. I also noticed that there is less room for the elbow piece to fit in the M2c vs the M3 or M4. The headlamp assemblies are closer on the M2c to the center opening..

Interesting! Any "hard" data? I mean are you sure IATs are not lower as it was a cooler day? cold vs. hot car? moving vs. stationary?

Not trying to discredit it, just stating we should compare like for like.

Also did you record water temps?

[Alfy]

Originally Posted by Megator

Have you got a pic of where the snorkel goes on the M2C?

I would personally not add holes, as I stated in the other thread the lack of holes should up the pressure ahead of the rad and therefore increase it's efficiency.

The minuscule gain in performance and throttle sensitivity are not worth it in my opinion.

You can see in the attached diagram from realoem that duct #15 channels the air upwards from the lower grill towards the intakes.

But unlike the M4, this vertical duct is not directly connected to the intake nozzles (part# 15 & 16 in the previous diagram).

This makes the air route a lot longer with more bends compared to the M4's design which channels air directly from the kidneys...

[SEAT TIME RULES]

Originally Posted by Megator

Interesting! Any "hard" data? I mean are you sure IATs are not lower as it was a cooler day? cold vs. hot car? moving vs. stationary?

Not trying to discredit it, just stating we should compare like for like.

Also did you record water temps?

I have AK Motion Data Display in my 2020. It shows all the OBDII data. IAT, EGT's Water temp, Oil temp etc.

I made note of my delta's when the car was moving 30MPH and it showed about a 5-10 degree lower delta vs when they were closed.

I don't think it makes much difference but for track duty it will certainly not hurt

The red fangs are menacing as well

[Detoxified]

Originally Posted by SEAT TIME RULES

I have AK Motion Data Display in my 2020. It shows all the OBDII data. IAT, EGT's Water temp, Oil temp etc.

I made note of my delta's when the car was moving 30MPH and it showed about a 5-10 degree lower delta vs when they were closed.

I don't think it makes much difference but for track duty it will certainly not hurt

The red fangs are menacing as well

Was looking at AK motion vs Awron. What are your thoughts? How's the UI on the Ak motion? Also does the Delete-R work? Does it only delete check engine light for downpipes or does it suppress all check engine lights? I don't want to miss a light on accident due to another problem

[Conissah]

Intakes look beautiful. Entirely stock setup meant 0 induction noise, and now with the BMC filters, it sounds amazing, especially with the windows down. How do these intakes compare to the BMC / carbon filter mod?

[SEAT TIME RULES]

Originally Posted by Detoxified

Was looking at AK motion vs Awron. What are your thoughts? How's the UI on the Ak motion? Also does the Delete-R work? Does it only delete check engine light for downpipes or does it suppress all check engine lights? I don't want to miss a light on accident due to another problem

The Awron is a larger display and has more color/personality than the AK Motion. It's also about $750 more! I'm very pleased with the AK unit so far.

As for the Delete R I believe it is just for the DP's.

The User Interface is great, very straight forward and plenty of customization.

I love the Exhaust flap option, OBDII code reading and reset, Delete R, to name a few...