M3 CS exhaust?

[elisiX]

I think this just about sums up what people should do.



I'm going with the Akra on my CS.

[rarlyl8]

Originally Posted by eRiggs5

I can tell you that the exhausts are definitely NOT the same either. My 16 base m3 is much louder with MPE than the CS I just got. Super excited to switch them and see the difference.

Same here. Am disappointed by the CS exhaust note compared to my '16

[jmg]

Originally Posted by rarlyl8

Same here. Am disappointed by the CS exhaust note compared to my '16

This. I really miss my MPE. The CS simply isn't as fun to drive as my M3 with MPE because of the sound alone. One would think that for the price it would just come with an MPE with welded tips. Kind of disappointing I have to shell out another $5k just to have the car sound like a high performance car.

[Toni_D]

Originally Posted by elisiX

I think this just about sums up what people should do.



I'm going with the Akra on my CS.

Which akra is that? Slip on or evo?

As I wrote in another thread I purchased an m3 cs which I will pick up in June and after a little sound check at the dealer I noticed the sound of the cs exhaust is different, deeper, than from the zcp exhaust.

Anyway, it was too quiet for me compared to my 16 M4 with mpe and I’m thinking of taking that mpe for the cs too but the problem, at least in Germany, we don’t have an answer from bmw yet that the mpe is legal on the cs

[melvyn]

Originally Posted by eRiggs5

I can tell you that the exhausts are definitely NOT the same either. My 16 base m3 is much louder with MPE than the CS I just got. Super excited to switch them and see the difference.

Yoy wont be dissapointed

[Murf1]

Originally Posted by gatorfast

Exhaust sound is simply not a strong suit of the M3/4 no matter the package or variant.

This is the truth. They need catless DP immediately to sound good. It'll take some of the TIN sound out of the exhaust.

[YKIGI]

Originally Posted by Murf1

This is the truth. They need catless DP immediately to sound good. It'll take some of the TIN sound out of the exhaust.

I DISAGREE 100%

The S55 sounds fantastic, its the midpipe configurations that ruin the sound. It can be fixed. More DD is needed here

Also DP is def not the answer as stated above. Messing with the DP with almost always create more RASP depending on your setup

[m34m]

Does anyone know if there is a difference in exhaust sound between Sport and Sport+? Specifically referring to the CS.

[spool twice]

there is. If you have the valves opened all the time, there are differences in how it sounds in comfort, sport, and sport +.

There seems to be more bassy notes in sport as compared to comfort, and sport + just has more gun shots but no louder than sport. I'm not sure why there is more bassy notes in sport as compared to comfort w/ valves opened, there seems to be some ECU trick at play here down in the lower range.

With the valves in OE configuration, Sport has the valves opened all the time except in gears 5+ once cruising.

Sport + has it opened regardless of gear/load.

All modes pretty much have the valves opened at 4,500 + so they sound the same except on overrun where comfort has no noticable burbles.

CS-specific only, I can't speak about other trims.