our FTP inlet pipe (intake pipe) is replacement for the original plastic air intake pipe,
never blow up again
S55 original  pipe is too small
If you increase the boost value or upgrade the turbocharger
it improves the last restriction of air flow into the turbo. 
This turbo intake pipe will improve turbo response, increase air flow and less turbo lag.
Features
*Increased Flow
*Direct OEM Replacement
*Caliber increase
*3-Ply Silicon Couplers
Part sg713448 was found on the following vehicles:
2' F87 M2 competition   (10/2016 — 03/2019)
3' F80 M3   (04/2012 — 06/2015)
3' F80 M3 LCI   (01/2015 — 10/2018)
4' F82 M4   (02/2013 — 02/2017)
4' F82 M4 LCI   (05/2016 — 03/2019)
4' F83 M4   (06/2013 — 02/2017)
4' F83 M4 LCI   (05/2016 — 03/2019)