Bimmer Performance Center N52 128i 3 stage intake and european air box installed

Jul 24, 2018
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2003 M5
We had two back to back installs involving the 3 stage intake and european air box swaps. First one being a white E91 touring and now an E82. Here are a few photos I was able to take during the process.
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Here is a quick video of it on our Dyno
 
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doublespaces

General of the Army
Oct 18, 2016
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2009 E93 335i
I knew the 3 stage intake was a popular mod but I didn't realize it gave this much power!
 
Jul 24, 2018
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2003 M5
It is a worthwhile upgrade but recently we have been seeing a lot of the DISA valves fail and this can prevent optimal horsepower and torque. If you want to fully eliminate the DISA valves you can install the N54 intake.
 

doublespaces

General of the Army
Oct 18, 2016
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While that would surely look nice I doubt it would work well on a naturally aspirated motor
 

Mpathic

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Dec 14, 2018
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'06 330iS, '07 M Coupe
Its why I bought an '06 330i as a starting point. Swap in a Y-pipe and 3" exhaust back to muffler of your choice and you remove the artificial power limit that BMW designed in with the narrow exhaust pipe diameter at the coupling before the muffler, allowing up to 290+, or 250 - 255 RWHP. Silicon intake boot also adds a few g/second MAF flow.
 

Torgus

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Nov 6, 2016
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ACF 6466 E92 + METH
That gain is after a tune too right? IIRC the n54 manifold makes more peak power but less in the mid range.