[Munchi435i]

Putting this intake up for sale. As Jeremy mentioned its just not the right amount of noise that i was looking for. Its a great system and is practically new but I must be getting old and prefer to be driving around in stealth.

I have an ad in the classifieds section if anyone is interested

[AmuroRay]

Question - do you guys get a resonance noise with your intake around the 5500-6000 area towards redline?

The car sounds "throatier" but at a certain point, it's all intake noise - like a vacuum or plane. It's not unpleasant, it just sounds different.

[thejeremyman9]

Originally Posted by AmuroRay

Question - do you guys get a resonance noise with your intake around the 5500-6000 area towards redline?

The car sounds "throatier" but at a certain point, it's all intake noise - like a vacuum or plane. It's not unpleasant, it just sounds different.

With what intake? Stock or MPPK airbox bottom with dry filter?

[AmuroRay]

Originally Posted by thejeremyman9

With what intake? Stock or MPPK airbox bottom with dry filter?

I have the MMPK with a AFE drop in. Actually, let me check is I have the lower installed instead of the stock airbox.

Edit: I do.

[PUREF30cjz]

So in this intake testing I have the AFE intake like this one https://afepower.com/afe-power-54-82...-intake-system I was told by some that the stock intake was just as good with a crop in so I put it in and did some logging. Heres what I found spool up does indeed get a lil better with the stocker but not much. The AFE does flow much more air with the PS2 turbo im using and the stocker seems to limit the upper end power the MAF grams were about 40 grams less with the stocker versus the AFE. I would like more sound but the AFE does have nice noises the stocker is too quiet but I feel the AFE is as well.

If theres another intake option that is better I would sure love to try it out want the best to use to help quick spool up as well as flow with the PS2 turbo

[thejeremyman9]

Originally Posted by BMW335icjz

So in this intake testing I have the AFE intake like this one https://afepower.com/afe-power-54-82...-intake-system I was told by some that the stock intake was just as good with a crop in so I put it in and did some logging. Heres what I found spool up does indeed get a lil better with the stocker but not much. The AFE does flow much more air with the PS2 turbo im using and the stocker seems to limit the upper end power the MAF grams were about 40 grams less with the stocker versus the AFE. I would like more sound but the AFE does have nice noises the stocker is too quiet but I feel the AFE is as well.

If theres another intake option that is better I would sure love to try it out want the best to use to help quick spool up as well as flow with the PS2 turbo

What inlet are you running? Pure?

I would like to see evidence that "The AFE does flow much more air". I assume you are looking at the MAF readings in the datalogs, lets see them. I am also suspicious that the intake itself isn't just skewing the MAF readings and you are actually flowing more air. I suppose it also depends on what tune you are running, but if you are on a load based tune i doubt the AFE is making any more power. There's people with PS2s and stock intake, including OEM paper filter, making 500whp no problem.

[AmuroRay]

Originally Posted by thejeremyman9

What inlet are you running? Pure?

I would like to see evidence that "The AFE does flow much more air". I assume you are looking at the MAF readings in the datalogs, lets see them. I am also suspicious that the intake itself isn't just skewing the MAF readings and you are actually flowing more air. I suppose it also depends on what tune you are running, but if you are on a load based tune i doubt the AFE is making any more power. There's people with PS2s and stock intake, including OEM paper filter, making 500whp no problem.

While I agree, making X power on X hardware doesn't mean that it's not a limiting factor.

I'd like to see the logs and are you comparing this to the stock paper filter or a drop in filter?

[thejeremyman9]

Originally Posted by AmuroRay

While I agree, making X power on X hardware doesn't mean that it's not a limiting factor.

I'd like to see the logs and are you comparing this to the stock paper filter or a drop in filter?

Agree 100% with the first part.

If you are asking me for logs with people running paper filter/stock intake with PS2 i dont have any on hand. The threads on that were from quite a while back and I didnt save them.

If you are asking for his logs then yes i want to see them as well lol. I don't think I've looked at MST intake logs in detail as its pretty uncommon.

[SlumpLord3000]

I noticed in the write up, all tests are done without the AFE scoop. Someone of the forum mention 1-2F IAT difference.

Since you made such a great write up, I wonder if you can do a test to see if $50 piece of plastic actually does anything.

[thejeremyman9]

Originally Posted by SlumpLord3000

I noticed in the write up, all tests are done without the AFE scoop. Someone of the forum mention 1-2F IAT difference.

Since you made such a great write up, I wonder if you can do a test to see if $50 piece of plastic actually does anything.

Everyone always seems to argue that the pre-IC intake temp is mostly irrelevant, even though i have pushed back on that, so I have never actually seen anyone say IATs are lower with the scoop. In any case 1-2F is negligible. I never bought one because i feel like any potential benefits are outweighed by forcing more dust/debris/water/etc into the airbox and filter. Also, any sort of "ram air" effect would be negated if you have the MPPK airbox bottom as i do now.

[AmuroRay]

Originally Posted by thejeremyman9

Agree 100% with the first part.

If you are asking me for logs with people running paper filter/stock intake with PS2 i dont have any on hand. The threads on that were from quite a while back and I didnt save them.

If you are asking for his logs then yes i want to see them as well lol. I don't think I've looked at MST intake logs in detail as its pretty uncommon.

No, I meant him - I was on my phone so I was trying to type it out quickly.

[PUREF30cjz]

Oh my lord guys i have literally 100s of logs and dont have a clue which ones they were. But with that said i could easily replicate it again i have both intakes still. I have David Shoup doing my tuning hes amazing. I am running the pure inlet i didnt do the whole inlet as pure said it didnt make a difference in flow versus just the partial inlet that connects to the stock tube.

The AFE does flow more and can even be felt in the upper rpms versus the stocker. Now mind you this was running a completely stock intake stock bottom unmodified stock new bmw filtet stock top. Like i said this is not a pitch for AFE as i dont care .... personally i want whatever wks best for my setup. Best spool up, most power, smoothest running but id love some more sound.

That all being said i may get some time this weekend to do a back to back run same road, same day, same temp, same tune and show that it does have a higher maf reading. Does mean anything who knows, i can say that even the butt dyno feels a difference.

[thejeremyman9]

Originally Posted by BMW335icjz

Oh my lord guys i have literally 100s of logs and dont have a clue which ones they were. But with that said i could easily replicate it again i have both intakes still. I have David Shoup doing my tuning hes amazing. I am running the pure inlet i didnt do the whole inlet as pure said it didnt make a difference in flow versus just the partial inlet that connects to the stock tube.

The AFE does flow more and can even be felt in the upper rpms versus the stocker. Now mind you this was running a completely stock intake stock bottom unmodified stock new bmw filtet stock top. Like i said this is not a pitch for AFE as i dont care .... personally i want whatever wks best for my setup. Best spool up, most power, smoothest running but id love some more sound.

That all being said i may get some time this weekend to do a back to back run same road, same day, same temp, same tune and show that it does have a higher maf reading. Does mean anything who knows, i can say that even the butt dyno feels a difference.

I'll withhold any judgement until i see the logs you described as bolded above where the only change is the intake. Get at least 2 4th gear pulls of each (3rd if 6MT)

[PUREF30cjz]

No way on earth i can do 4th gear ill be goin way to fast on this back road i use but i can do 2 3rd gear pulls no prob even tben im well into the triple digits at 7k

[PUREF30cjz]

Ok Jeremy heres what I discovered today doing a back to back. Now I got a peak reading of 435 grams per second at 6500 with the AFE. I pulled over changed to the totally stock intake and I had to use an air filter from a different car since everyone was out of a stock bmw one but it fit very well so the stocker was already at a slight disadvantage. But started it up took it for a drive to let it adapt a little. First thing I noticed was my idle was alot smoother!! Throttle response, boost, everything came in alot quicker as well. Driving seemed much cleaner and smooth and mind you my filter was just cleaned in the AFE. After 30 miles went back to same exact road and did another 3rd gear pull all the way to 7k just like with the AFE. You sir are correct I was mistaken I must have been thinking of something else as the stocker hit 440 grams per second at 6400 but held it to redline but the AFE dropped too 424 by redline, Interesting results but you have made a believer and so I am going to order a MPPK bottom, what drop in would you recommend?

I never thought id go back to the stock intake especially after what I paid but like I said above I want the best working for my car not the best looking. Thanks brother much appreciated!!

[thejeremyman9]

Originally Posted by BMW335icjz

Ok Jeremy heres what I discovered today doing a back to back. Now I got a peak reading of 435 grams per second at 6500 with the AFE. I pulled over changed to the totally stock intake and I had to use an air filter from a different car since everyone was out of a stock bmw one but it fit very well so the stocker was already at a slight disadvantage. But started it up took it for a drive to let it adapt a little. First thing I noticed was my idle was alot smoother!! Throttle response, boost, everything came in alot quicker as well. Driving seemed much cleaner and smooth and mind you my filter was just cleaned in the AFE. After 30 miles went back to same exact road and did another 3rd gear pull all the way to 7k just like with the AFE. You sir are correct I was mistaken I must have been thinking of something else as the stocker hit 440 grams per second at 6400 but held it to redline but the AFE dropped too 424 by redline, Interesting results but you have made a believer and so I am going to order a MPPK bottom, what drop in would you recommend?

I never thought id go back to the stock intake especially after what I paid but like I said above I want the best working for my car not the best looking. Thanks brother much appreciated!!

Thanks for sharing your experience. I strongly believe stock intake with MPPK bottom and dry drop in filter (i use AFE pro dry s to answer your question) is the best all around in many respects. I'll speak only to stock turbo application because that's what i tested but i think it goes far further than that as you experienced. This is particularly true when you pair with MST v2; its a very optimized intake setup.

[paimon.soror]

Silly question, but shouldn't we also be looking at WGDC in the back to back runs?

[thejeremyman9]

Originally Posted by paimon.soror

Silly question, but shouldn't we also be looking at WGDC in the back to back runs?

Sure, you can, but i already did detailed testing on the CTS (including WGDC) and there's no way the MST intake has less restriction/better airflow than the CTS. And the data showed that the CTS didnt even lower WGDC compared to stock/MPPK. WGDC aside, the driveability, good idle, response, etc, are far more important than +/- 2% WGDC.

[paimon.soror]

Yup, been following this thread a bit. I'm tempted to switch back to stock just to see how it feels again.. been running CTS for about 3 years now.

Since cts was my first mod, it's been a while.

[paimon.soror]

K, back to back runs, same day, all within 30 mins:

Tune: BM3 Stg2 , XHP Stage 3
Mod list: VSRF 5" stepped street, pure full inlet, wagner dp, TS recirc DV, WMI

CTS:
https://www.bootmod3.net/log?id=60c6...729b58ef6e8ce5

Stock w/ Stock bottom & OEM paper filter (3 months old):
https://www.bootmod3.net/log?id=60c6...90c679580d12a6

Seem almost identical. wish i had the MPPK bottom and AFE just to see the difference - but to everyone elses point, its interesting how much smoother the car feels....*shrugs*

[PUREF30cjz]

Originally Posted by thejeremyman9

Thanks for sharing your experience. I strongly believe stock intake with MPPK bottom and dry drop in filter (i use AFE pro dry s to answer your question) is the best all around in many respects. I'll speak only to stock turbo application because that's what i tested but i think it goes far further than that as you experienced. This is particularly true when you pair with MST v2; its a very optimized intake setup.

Well Im running a PS2 with their inlet so that speaks volumes over a stock turbo. I will be ordering an AFE pro dry S as well an I couldnt agree with you more I feel this is a great setup. I honestly couldnt believe I was driving the same car today its that much better. Idle, driveability, smoothness, and holds the power to redline even better than my AFE so its a total win win for me .... well other than thats a waste of 500 bucks an I just spent another 300 for the mppk bottom and a new AFE drop in lol.

[thejeremyman9]

Originally Posted by BMW335icjz

Well Im running a PS2 with their inlet so that speaks volumes over a stock turbo. I will be ordering an AFE pro dry S as well an I couldnt agree with you more I feel this is a great setup. I honestly couldnt believe I was driving the same car today its that much better. Idle, driveability, smoothness, and holds the power to redline even better than my AFE so its a total win win for me .... well other than thats a waste of 500 bucks an I just spent another 300 for the mppk bottom and a new AFE drop in lol.

Well you could have just cut the MPPK hole in your airbox bottom and saved that $300 lol, i show pictures of how i did mine in the inlet thread. But yeah, good to hear from your experience the stock intake is fine for PS2 as well (which we have already seen elsewhere)