11-05-2023, 07:29 AM | #1 |
Private
54
Rep 71
Posts
Drives: G83
Join Date: Jul 2020
Location: Atlanta
|
Active downpipes and mid pipe
Featured on BIMMERPOST.com |
11-05-2023, 10:14 AM | #2 |
Colonel
2890
Rep 2,617
Posts
Drives: 2024 M4 Convertible
Join Date: Jun 2017
Location: USA
|
Just a warning that the dealers around here will most likely have an issue with you swapping out downpipes, warranty-wise. If you're ok with that then go for it.
|
Appreciate
1
Fugazii234.50 |
11-05-2023, 10:20 AM | #3 |
Private
54
Rep 71
Posts
Drives: G83
Join Date: Jul 2020
Location: Atlanta
|
thanks as full cat and no CEL didn't think it would be an issue but appreciate the heads up. They had no issue with the mid pipe on previous M cars
|
Appreciate
0
|
11-05-2023, 10:45 AM | #4 | |
Lieutenant
530
Rep 413
Posts
Drives: BMW F30 335i xdrive
Join Date: Apr 2016
Location: Colorado
|
Quote:
BTW: I do not know how this setup will sound but its unusuall for anyone to go down the path of AA Gesi catted DP as those are quite expensive. |
|
Appreciate
1
Bguggs54.00 |
11-05-2023, 12:38 PM | #5 |
Captain
235
Rep 755
Posts |
|
Appreciate
0
|
11-05-2023, 02:31 PM | #6 | |
Private
54
Rep 71
Posts
Drives: G83
Join Date: Jul 2020
Location: Atlanta
|
Quote:
|
|
Appreciate
0
|
11-05-2023, 07:31 PM | #7 |
Lieutenant
530
Rep 413
Posts
Drives: BMW F30 335i xdrive
Join Date: Apr 2016
Location: Colorado
|
I’m going with Mad Catted 200 and AA single mid pipe resonated. Shipment on its way so within 1wk I can describe you this setup. Would expect your 400 gesi DP will be something more toned in sound that Mad 200 one but on other note Im going with resonated mid pipe vs you non resonated. End result I would not be surprised if its going to be identical. Also have valve controller so can open the valve fully.
Expecting low frequency sound, well rounded exhause note. No rasp, no high pitch screeming. Will see :-) Black Friday addiction and bad influence of Extreme Mike prices |
Appreciate
1
Bguggs54.00 |
11-05-2023, 07:49 PM | #8 |
BMW Enthusiast
378
Rep 126
Posts |
I’ll let you know in a bit. Getting my AA catted DP installed right now. I’ve had an Awron valve controller, Dinan axleback, and evolution racewerks midpipe setup for about 1.5 months.
Curious to see what the catted DP does as far as sound with my current setup.
__________________
CURRENT LINEUP
2018 Satin Blackrock Grey Metallic Tesla Model 3 LR, 2023 Glacier White Audi Q4 Etron, 2024 Black G83 BMW M4 xdrive Competition Convertible |
Appreciate
1
Bguggs54.00 |
11-05-2023, 11:02 PM | #9 |
Colonel
2890
Rep 2,617
Posts
Drives: 2024 M4 Convertible
Join Date: Jun 2017
Location: USA
|
Midpipes don't touch the primary cats so they shouldn't have an issue with that. Downpipe swap is swapping out the primary cats so even if there's no CEL, they still may be concerned. It's always a crapshoot.
|
Appreciate
0
|
11-06-2023, 12:55 AM | #10 |
BMW Enthusiast
378
Rep 126
Posts |
I’ll try posting videos tomorrow but the AA gesi catted downpipe added an increased roar and volume that is very, very noticeable. Cold starts are violently loud on my system with no resonators.
__________________
CURRENT LINEUP
2018 Satin Blackrock Grey Metallic Tesla Model 3 LR, 2023 Glacier White Audi Q4 Etron, 2024 Black G83 BMW M4 xdrive Competition Convertible |
Appreciate
1
Bguggs54.00 |
11-06-2023, 07:15 AM | #11 |
Private
54
Rep 71
Posts
Drives: G83
Join Date: Jul 2020
Location: Atlanta
|
|
Appreciate
0
|
11-06-2023, 09:04 AM | #12 |
Colonel
2890
Rep 2,617
Posts
Drives: 2024 M4 Convertible
Join Date: Jun 2017
Location: USA
|
|
Appreciate
2
Bguggs54.00 Info@mad-us.com1923.00 |
11-06-2023, 09:56 AM | #13 |
BMW Enthusiast
378
Rep 126
Posts |
The sound isn’t bad at all after the cold start. It’s the actual cold start that’s violent. Going to have to jump to an unlock/flash setup with cold start delete soon.
__________________
CURRENT LINEUP
2018 Satin Blackrock Grey Metallic Tesla Model 3 LR, 2023 Glacier White Audi Q4 Etron, 2024 Black G83 BMW M4 xdrive Competition Convertible |
Appreciate
1
Bguggs54.00 |
11-06-2023, 03:20 PM | #14 |
BimmerPost Supporting Vendor
24204
Rep 190,807
Posts |
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
Appreciate
1
Bostro530.00 |
11-06-2023, 03:40 PM | #15 | |
Private
54
Rep 71
Posts
Drives: G83
Join Date: Jul 2020
Location: Atlanta
|
Quote:
Bad influence indeed as they are ordered |
|
Appreciate
1
Bostro530.00 |
11-06-2023, 04:05 PM | #16 | |
BimmerPost Supporting Vendor
24204
Rep 190,807
Posts |
Quote:
__________________
Check out our current sale by clicking on this link!
https://x-ph.com/sale/ Phone number 702-494-9435 |
|
Appreciate
0
|
11-06-2023, 06:14 PM | #17 | |
BimmerPost Supporting Vendor
1923
Rep 4,923
Posts |
Quote:
__________________
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|