[S2000M5]

Originally Posted by Justao

Sport doesn’t produce burble/pops while sport+ does… it’s more noticeable if you make mods like catless 2ndaries and res delete

I thought burble/pops are eliminated in stock X5MC, are they not?

[Falcon900]

How does it sound with only secondary cats deleted?

[mencio]

Originally Posted by Falcon900

How does it sound with only secondary cats deleted?

Just had my ER secondary cat delete installed and car sounds marginally louder. From the inside it is hard to tell much difference, maybe a little bit louder at higher RPMs. But unless you've driven it everyday probably wouldn't be noticeable. From the outside it is a bit louder as well, but again not a major sound difference. I think this is on par with the size of the replaced part (secondary downpipe) but I have heard will make a difference in total when adding a new exhaust. I guess every small part counts.


In the end I am now convinced that to make this car sound better a new exhaust (cat back or full) OR both down pipes are needed.

[S2000M5]

Originally Posted by BobsM3Coupe

Then why did the pre LCI X5 M50i sound better than our cars? It had crackles and pops, etc. in sport and sport+.
Just doesn't seem right.

Not only the X5 M50i sound better, but today I discovered that it has a smaller fender gap, at least at the front...

Must have something to do with the air suspension, but still....