Thank you for such a clear, no nonsense explanation!

Can't wait to see next step and how the engine performs.

👍👍👍Thats exactly what they do and exactly why you should remove them

I'd most definitely not remove them if made from steel and are quality. I often upgrade them to custom made steel cuts or carbon fibre. The performance lost after removing them is dramatic.

So, to sum up, swirl flaps good if properly engineered and manufactured from the right materials, swirl flaps bad on all available/affordable production véhicules.

Had mine removed, car drives great

Cracking info. Removed them from my a3. Not long before they fell apart

I'll be taking them off my A6 when I finally get around to it. Partly for the reasons you mention and partly because the black tape I used to cover up the check engine light on the dash is starting to look a bit untidy now and I can turn it off for good when the flaps are gone.

I removed egr valve and swirl flaps and its running better and lower gas per mile Vauxhall astra h z16xep

The fuel quality in Germany is much higher compared to England and America. That's why carbon buildup is less of a problem in Germany. Fuel quality in England and America seems to be a sort of rip off to their customers when compared to fuel qualities in Germany. (I am indeed afraid that the international cooperation will make the German fuel quality go down as well. 'Maybe for the markets the best solution'. Yes - but not for my engines.) That's why we are expected to drive synthetic diesels only in such cars anyway. The usual telling goes, we all know, 'using VPower diesel only will not increase total cost of ownership (too much) anyway.' True again - because depreciation on a new or three year old 120k € car is way, way higher than paying about 6 or 8 % more on VPower fuels. The fuel costs don't make it anyway. 'Only small people seek to have a saving here'. Buy a new car every four years or 50k miles and i will never have any of such problems. (True again - but the car-brand still continues to keep on accumulating big probs on it's reputation. - We see too many 'I-people' baring responsiblity everywhere anyway? 'I will be out of office and in retirement anyway when the avalanche of complaints with regard to that will come'(?))

What about the performance loss? Or what about emissions on the exhaust pipe? Are they worst? We would like to know about that too.

bmw modern build standards .bmw sale guy flips me off .lol good video

I'd keep the flaps but remap EGR out of your ECU. This way you wont get carbon in your intake therefore no carbon build-up. Replace every 75K miles...

Hi ,i just removed swirlps ,everythinks seems fine ,same aceleration ,but my mpg got much worse... Any suggestions where to look at ? .Thx

When a crap brittle aged plastic swirl blade breaks and it's sucked into your head ...that's why they remove it

basically like TGV's on a subie right?

i love engines with swirl flaps its so fun to tell people "i can remove them for *price*" and they say, "nah, its not a problem yet" and then their engine blows up due to stupid plastic. it is far more common that the flaps break in the closed position all the time so you cant go past 2-3000 rpm thinking you are in limp mode but there is actual plastic flaps blocking airflow at higher RPM. Since there are 2 seperate runners, short for torque and long for sustained torque at higher rpm, as he pointed out in the video.

Has anyone ever said you are Ewan McGregor’s doppelgänger

aussie or scottish accent?

Repent to Jesus Christ! Are you a sinner? Mark 2:17 King James Version 17 When Jesus heard it, he saith unto them, They that are whole have no need of the physician, but they that are sick: I came not to call the righteous, but sinners to repentance.