[hellrotm]

Originally Posted by twboy1999

look exactly same as north America's?

https://f87.bimmerpost.com/forums/sh...&postcount=365

You can clearly see the difference between the opf’s In Euro version and the secondary cats on the us version you linked.

[hellrotm]

Originally Posted by MR.

Yup, brainstormed again today with my tuning specialist colleague today. We checked Realoem and watched the photos here with great interest.

We are working on ideas as we speak, but we need my car on the dyno to really understand what we can do.

My car will go into the exhaust and tuning process early October, so give all tuners a bit of time to get some decent ideas and work out some products. They are all waiting for cars to test.

MR

It will interesting to see their findings. Although not applicable to me, still very interested.

I have a suspicion the 0.1 bar increase in boost is not enough to overcome the additional restriction in those opf’s. After seeing how much opf affects new Euro Z4 M40i.

Some kind of flow test between secondary cat and opf would be helpful.

[Tav7467]

Is it just me or does it look like BMW has the muffler can upside down? If you flipped it and rotated the tips 180, would if tuck up higher where it should be?...... that would be a pretty hilarious story to read about when they fix it on the 2020 cars lol.

[MR RIZK]

Originally Posted by Tav7467

Is it just me or does it look like BMW has the muffler can upside down? If you flipped it and rotated the tips 180, would if tuck up higher where it should be?...... that would be a pretty hilarious story to read about when they fix it on the 2020 cars lol.

That would be funny however if u look at the entry and exit points of the pipes where it is on the muffler, flipping it would not change the centre line.