E89 35i Air Intake / Stainless exhausts

[R60BBA]

Hi,

After doing some googling I’m struggling to see many options for performance air intake and exhaust systems? Only really looking from a noise point of view these engines sound amazing I’m sure what a stainless system they would sound even better.

Don’t bother with an intake.

Instead combine the money and get a good quality exhaust system (eg Supersprint, Eisenmann or Bastuck).

Supersprint:
https://youtu.be/YQtThhhdngs

Eisenmann:
https://youtu.be/i8JTyxkspGw

Bastuck
https://youtu.be/YQtThhhdngs

[R.E92]

20-25bhp that’s a fair power increase for the money would love to hear yours if you have any vids.

Only installed it last weekend. Will take some videos this weekend. The power gain was noticeable, mostly above 4k rpm. The engine feels like it's breathing properly now.

Will the car still pass the emissions test at MOT time with a cat delete? thx

It will still pass the emissions testing without any issues as there are another set of cats in the exhaust. Removing cats should be a MOT failure on visual inspection but they are buried in the engine bay and not on show.