12-24-2014, 09:25 PM | #1 |
Private First Class
50
Rep 165
Posts |
M5 Exhaust flapper mod demonstrated
I have experimented with keeping the exhaust valves open on a new 2015 M5 w/ stock exhaust and I feel the difference is worth it to keep. Please view yourself and come to your own conclusion. |
12-24-2014, 10:07 PM | #2 |
Waiting for the sun
67
Rep 704
Posts |
I know others will think otherwise and will want louder, but I think that sounds really good! I'm going from an E92 to this bohemoth because I need the space, but don't want to give up my youth quite yet, lol. So, did you wire your exhaust valves or get the Exhaustmeister thing?
__________________
2012 E92 M3- Miss her.
2015 F10 M5- Land yacht, but miss her too! 2016 991.1 GT3- Woohoo! 2018 M240ix- Daily driver. Still Woohoo! |
Appreciate
0
|
12-24-2014, 10:11 PM | #3 | |
Private First Class
50
Rep 165
Posts |
Quote:
it took about five minutes to wire the valve open.....it normally stays closed until you get to about 3500 rpm and then opens for the brief time you drive in that rpm range. I was very impressed with the exhaust note and NO DRONE !! |
|
Appreciate
0
|
12-24-2014, 11:20 PM | #4 |
Waiting for the sun
67
Rep 704
Posts |
I like it and you may have saved just saved me $9K, so thank you
__________________
2012 E92 M3- Miss her.
2015 F10 M5- Land yacht, but miss her too! 2016 991.1 GT3- Woohoo! 2018 M240ix- Daily driver. Still Woohoo! |
Appreciate
0
|
12-25-2014, 12:16 AM | #6 |
Lieutenant
59
Rep 513
Posts |
Man instead of Akrapovic exhaust, I can spend that $9k on getting Vorsteiner carbon fiber lip because they make the best one hands down (my opinion).
Anyone know if you get Carbon Fiber tips to just put over the M5 stock exhaust?
__________________
2018 Lamborghini Huracan Performante
2012 Ducati Panigale 1199 S 2019 Ducati Panigale V4R |
Appreciate
0
|
12-25-2014, 01:53 AM | #7 |
Private First Class
50
Rep 165
Posts |
|
Appreciate
0
|
12-25-2014, 01:54 AM | #8 |
Private First Class
50
Rep 165
Posts |
|
Appreciate
1
|
12-25-2014, 10:45 AM | #10 | |
Major General
1730
Rep 5,110
Posts |
Quote:
|
|
Appreciate
0
|
12-25-2014, 02:28 PM | #11 |
Major General
249
Rep 6,125
Posts |
Sounds great. with larger size tips, you will be set!
__________________
PAST: F80 M3 ZCP | 911.1 C2S | F10 M5 ZCP | E70 X5M | E90 M3 | E46 M3 | E36 M3 |
Appreciate
0
|
12-26-2014, 01:15 AM | #14 |
Private First Class
16
Rep 110
Posts |
I did mine with zip ties yesterday...will find out soon if they can resist the heat...I have catless Downpipes and stock exhaust...the sound is great in idle, revving, and low speed
|
Appreciate
0
|
12-26-2014, 07:10 AM | #15 | |
Major General
3149
Rep 7,932
Posts |
Quote:
__________________
|
|
Appreciate
0
|
12-26-2014, 09:09 AM | #16 | ||
Private First Class
16
Rep 110
Posts |
Quote:
|
||
Appreciate
0
|
12-26-2014, 09:25 AM | #17 | |||
Major General
3149
Rep 7,932
Posts |
Quote:
__________________
|
|||
Appreciate
0
|
12-26-2014, 10:25 AM | #18 | ||||
First Lieutenant
176
Rep 376
Posts |
Quote:
Keeping the valves open IMO really helps the exhaust note for these vehicles as so much of our driving is stop and go and so much of the vehicles life is spent at these lower RPMs. The after market exhausts like E Race, Akra etc I'm sure are better but also very pricey. I chose to put the $$ toward the DPs for both better sound quality and extra HP |
||||
Appreciate
0
|
12-27-2014, 04:22 AM | #19 |
Private First Class
16
Rep 110
Posts |
So this is what it sounds like with OEM Exhaust (Flaps held open with zip ties) and Catless Downpipes (Gintani)...I like it so far...Will upload videos of some drive-bys later this week...
Last edited by falsalem; 12-27-2014 at 06:35 AM.. |
Appreciate
0
|
12-27-2014, 06:21 AM | #20 |
Private First Class
16
Rep 110
Posts |
I just noticed that the zip ties had come loose before recording the video. I'll try keeping the valves open and record another video later this week.
Last edited by falsalem; 12-27-2014 at 06:36 AM.. |
Appreciate
0
|
12-27-2014, 08:52 AM | #21 |
Curve Thrasher
630
Rep 3,773
Posts |
Sounds good bro. I like this. The one diff I can tell is there is lil to no turbo whine compared to our aftermarket exhaust. Still sounds mean
|
Appreciate
0
|
12-27-2014, 12:16 PM | #22 |
Private First Class
11
Rep 147
Posts |
Gents - I had my exhaust valves tied open earlier in the summer and the extra sound is just about right. Sounds a bit more aggressive. Just used some medium grade wire and it has been solid. It is worthwhile.
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|