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      04-09-2021, 02:18 PM   #1
Miaf30
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Cg ds-1 mppsk

Whats up everyone,

Is anyone here running a CG DS-1 Catted dp with mppsk? Im curious as to how it sounds and how the drone is while cruising. Please let me know and post those exhaust clips. Thank guys
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      04-10-2021, 10:30 AM   #2
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I just added an AA catted downpipe to my MPPSK exhaust. It drastically changes the sound. Its raspier, deeper and racier in tone. When the flaps open, it goes from civil to unrest faster than a racist cop. It's loud, but it sounds fantastic!

The standard drone heard cruising down the highway is intense, however, close the valves and it goes away completely. The difference between sport and comfort is far more pronounced.
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      04-10-2021, 10:42 AM   #3
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Quote:
Originally Posted by Miaf30 View Post
Whats up everyone,

Is anyone here running a CG DS-1 Catted dp with mppsk? Im curious as to how it sounds and how the drone is while cruising. Please let me know and post those exhaust clips. Thank guys
CG catted pairs well with aftermarket exhausts, its a lot more aggressive on sport mode but keeps the car fine to drive in comfort
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      04-10-2021, 04:30 PM   #4
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I have a VRFS catted on my MPPSK, it took it a step too far IMO, lil bit raspy valves closed (no drone tho) and opened wasn't a great sound at all, harsh and loud.

Added a resonator to the "mid pipe" section and it's now almost perfect, super deep, louder than stock cat but has a great tone open or closed valves.

Tempted to refine further with a bottle res but leaving for now.
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      04-10-2021, 11:02 PM   #5
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AA with MPPSK is the best. Highest CPSI so it has the least drone. Perfect sound in my opinion
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      04-12-2021, 09:46 AM   #6
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Quote:
Originally Posted by f30b58pwr View Post
AA with MPPSK is the best. Highest CPSI so it has the least drone. Perfect sound in my opinion

The AA has a hi-flow cat right?
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      04-12-2021, 11:29 AM   #7
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Quote:
Originally Posted by cmart View Post
Quote:
Originally Posted by f30b58pwr View Post
AA with MPPSK is the best. Highest CPSI so it has the least drone. Perfect sound in my opinion

The AA has a hi-flow cat right?
Quote:
Originally Posted by cmart View Post
Quote:
Originally Posted by f30b58pwr View Post
AA with MPPSK is the best. Highest CPSI so it has the least drone. Perfect sound in my opinion

The AA has a hi-flow cat right?
Yes should be 400 cells I believe
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      04-12-2021, 12:03 PM   #8
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Quote:
Originally Posted by pwaf13 View Post
I have a VRFS catted on my MPPSK, it took it a step too far IMO, lil bit raspy valves closed (no drone tho) and opened wasn't a great sound at all, harsh and loud.

Added a resonator to the "mid pipe" section and it's now almost perfect, super deep, louder than stock cat but has a great tone open or closed valves.

Tempted to refine further with a bottle res but leaving for now.
This is crazy to hear. I know sound is subjective but I get so many compliments on my catless +MPPSK sound. Valves closed sounds good, Like VQ-ish. and valves open just sounds like a beast. Especially in-between gear shifts when it makes that snapping sound

One thing I wonder is if people turn off the ridicolous "active sound" or whatever bullshit BMW calls it. The piped in cabin noise. Turning that off with bimmercode made the car sooooo much more bearable. There was soooo much drone with the MPPSK when I had it on and it completely went away when I coded that out. Of course now with the Catless DP not much you can do about that.
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      04-12-2021, 12:50 PM   #9
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How loud is the startup with a catted downpipe? The mppsk is already pretty loud and I'm afraid a downpipe will make my neighbors want to kill me.
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      04-13-2021, 01:14 AM   #10
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Quote:
Originally Posted by Ifellapart View Post
Quote:
Originally Posted by pwaf13 View Post
I have a VRFS catted on my MPPSK, it took it a step too far IMO, lil bit raspy valves closed (no drone tho) and opened wasn't a great sound at all, harsh and loud.

Added a resonator to the "mid pipe" section and it's now almost perfect, super deep, louder than stock cat but has a great tone open or closed valves.

Tempted to refine further with a bottle res but leaving for now.
This is crazy to hear. I know sound is subjective but I get so many compliments on my catless +MPPSK sound. Valves closed sounds good, Like VQ-ish. and valves open just sounds like a beast. Especially in-between gear shifts when it makes that snapping sound

One thing I wonder is if people turn off the ridicolous "active sound" or whatever bullshit BMW calls it. The piped in cabin noise. Turning that off with bimmercode made the car sooooo much more bearable. There was soooo much drone with the MPPSK when I had it on and it completely went away when I coded that out. Of course now with the Catless DP not much you can do about that.
I've had plenty of compliments too, both stock cat and VRSF, was just not "my" sound is all hence adding a resonator. As you say, sound is subjective

When was on stock cat I really liked it when I picked up the car (used with MPPSK), just lost love for it with the VRSF. Doesn't really drone, just lost its tone. Added a free flow resonator and it's very deep and nice now, almost Remus deep, not quite, but almost.

I could be wrong, but pretty sure active sound is disabled as part of the MPPSK software? Sure I read that somewhere, might be making that up though. Might have a go disabling in BM3 and see what happens
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      04-13-2021, 01:16 AM   #11
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Quote:
Originally Posted by MPPSK340 View Post
How loud is the startup with a catted downpipe? The mppsk is already pretty loud and I'm afraid a downpipe will make my neighbors want to kill me.
Deafening and harsh, disabled via Bootmod3 and startup is quiet now
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      04-13-2021, 04:44 AM   #12
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My car has the MPPSK exhaust off my previous car, but not the complimentary tune that goes along with it. I use BM3 in conjunction so it gives me far more ability to tailor the power and sound. Here's my setup:

- Active sound turned off (it was like another singer singing out of tune)
- Cold Start off
- GTS Startup Roar on (my guilty pleasure)
- Comfort Valves on OEM (open over 3.5k or so)
- Sport Valves on OEM (Open on throttle, closed on cruise, eliminates a lot of highway drone)

I'm still toying with the burbles. I have the aggression turned way down, but I'm going to just turn them off. It burbles naturally anyways it seems and that's enough for me. MPPSK stock tuned burbles were far quieter and mild without the DP but with it and the tune, they're much more pronounced.

With this setup, highway drone is mostly eliminated even in Sport. Only time it does occur is at 80 mph while I'm accelerating slightly. While cruising, valves are closed, no drone. In Comfort it's always quiet with zero drone.

If you're running this combo without a 3rd party tune, you're leaving a TON of power on the table, but you lose your warranty.
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      04-13-2021, 04:53 AM   #13
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I am running Wagner 300cell with mppsk .

Sound is perfect in comfort mode with D for daily drive

going over to manuel in comfort the valve is open and the sound is a bit louder and pops

Sport and sport + is just awsome. Sounds amazing and it´s loud


I love the GTS roar start up mode, but if you need to be quiet in mornings the cold start delete is great. Nothing big at all on start up and just drive away

I am running MHD
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      04-13-2021, 11:10 AM   #14
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Quote:
Originally Posted by pwaf13 View Post
I could be wrong, but pretty sure active sound is disabled as part of the MPPSK software? Sure I read that somewhere, might be making that up though. Might have a go disabling in BM3 and see what happens
I've heard this before, maybe its just a case with my mechanic forgetting to disable it or something, but I know for a fact, mine was still on after the MPPSK install by the dealer. There was so much drone inside the cabin it was insane. After I disabled it, I was kind of disappointed with how quiet it was in the cabinet with the windows rolled up. Hence me going catless lol.
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      04-20-2021, 03:52 PM   #15
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I am planning on installing CG DS-1 with my MPPSK so I may be able to get some sound clips. I just want to run stage 2 MHD and add some volume. I ran catless before on n54 but that was stock exhaust. I think with MPPSK having no resonators catless can get very raspy whereas the catted retains more of the MPPSK designed tone.
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