View Single Post
      06-21-2023, 03:56 PM   #10
Dinan_Engineering
Brigadier General
Dinan_Engineering's Avatar
United_States
3933
Rep
3,136
Posts

Drives: Any BMW
Join Date: Jun 2013
Location: Opelika, AL

iTrader: (0)

Quote:
Originally Posted by nd.point View Post
Sounds stock, pass.
Quote:
Originally Posted by NotSharocks View Post
2k to sound bad still haiyaaaaa

Finish looks good though.
More videos will be forthcoming. Video here is a rough and dirty version just so it can get to market with something and not have to wait on the release from the media team. The system itself is essentially the G80/G82 exhaust though (slight pipe routing change to the inlets is all) so you could use those videos as a rough comparable if desired as that also includes stock. Should be noted that the delta between valves open and closed on the M2 is greater by virtue of how the factory valves operate between the 2 platforms (M2 valve opens much further than the M3/M4).



Quote:
Originally Posted by D52M550 View Post
2K for 6HP/5TQ? Absolutely ridiculous. Don’t waste your money.
What kind of power were you expecting out of an axle back that retains cats and resonators?

Exhausts are effectively a sound only modification. Now if you remove OPF's/Cat's/etc. then that is a different story and some more meaningful additions to overall power can be achieved.

Quote:
Originally Posted by Ravenseal View Post
Could we get a decibel measurement of stock vs this? Hard to tell from the video.
Request has been sent and the engineer is working on compiling the testing data. I have the Dinan variant information handy now which is below but missing the stock data. Will add that to the chart once found and relayed. Included charts in both dB as well as in Sones (true loudness). Since dB's are logarithmic and not directly proportial in scale (60dB is twice as "loud" as 50dB as an example) its usually easier for most to comprehend loudness in Sones that are linear.

Also included the full system (axle back w/ mid/x-pipe) just cause. X-Pipe will not be released until the tail end of summer or into the fall however as raw material for it is backed up.

Name:  M2_Db_R2.jpg
Views: 2005
Size:  125.9 KB

Quick Update: Can't find the external stock dB data (a few runs of cabin dB was found but that doesnt compare directly to what is given above) so that will need to be grabbed again. Will do so in the coming days at the same time we switch the system back over to stock for additional sound clips.

Last edited by Dinan_Engineering; 06-22-2023 at 09:03 AM..
Appreciate 2
MASHCT699.50