|
|
03-02-2010, 03:51 PM | #1 |
Captain
107
Rep 805
Posts |
Dinan sound at idle vs OEM
For those that actually have the Dinan exhaust (rear section only), or have heard it first hand, please comment (for those that have heard it on Youtube, please DO NOT comment)
How much louder is the Dinan exhaust at idle vs the OEM at idle (assuming the initial 30 second rough-start is over with and the cats are warmed up)? Is it 10% louder, 20, 30%? I know it's one of the quieter exhausts out there, but I just want to better understand how it compares to OEM at idle. I know the "full" system including Dinan's midpipe really makes it sound better once you get around 4,000 rpm...but, I'm just looking for what it sounds like with the rear section only at this point. Thanks much. |
03-02-2010, 03:59 PM | #2 |
Major General
684
Rep 5,069
Posts
Drives: BMW 230i Msport w/LSD
Join Date: Nov 2007
Location: Astral Projecting: ∞ 23.516 -122 02.625 0242.101 ĕv'rē-hwâr'
iTrader: (16)
Garage List 2009 Porsche 911 997.2 [10.00]
2019 Hyundai N (Sold) [10.00] 2013 BMW M3 (Sold) [10.00] 2011 1M Coupe (Sold) [8.78] 2008 E90 M3 (Sold) [8.60] 2007 Z4 Mcpe (Sold) [9.50] 2005 BMW M3 (Sold) [10.00] |
Without measuring the db differnce between stock and Dinan I can't really give you a % of how much louder it is. However, the stock exhaust is very quiet at idle IMO, the Dinan is definately louder and adds more "bass" to the sound of the exhaust note. Heard it just yesterday when the SA drove it away for service. I personally love it and wouldn't want anything louder on this car. Again, JMNSHO
__________________
|
Appreciate
0
|
03-02-2010, 04:28 PM | #3 |
Major
134
Rep 1,245
Posts |
its hard to give a % but it is defininetly deeper of an exhaust note. If i had to guesstimate, i would say its 10% louder
-Scott
__________________
03' 525iT stick, 22' 530i
Previous: 20' X3 M40i, 19' 740i Msport, 17' 430i GC, 15' Msport X3 28i, 15' Sportline X1 28i, 13' Msport 328i, 09' Msport 335i, 07' Msport 335i |
Appreciate
0
|
03-02-2010, 04:35 PM | #4 | |
Captain
107
Rep 805
Posts |
Quote:
Thanks Metak...good info. Much appreciated. I'm thinking this is the one for me...I will be doing a midpipe w/HFC's down the road, so I want a rear section that will compliment that nicely and not be too loud...sounds like Dinan is a good choice. |
|
Appreciate
0
|
03-02-2010, 05:59 PM | #5 |
//M addicted
6
Rep 128
Posts |
I used Rear Section Dinan Exhaust previously and I would say about 20% louder than OEM Exhaust but I got Drone at 2100 - 2300 RPM. The drone was not as loud but quite bothering to my ear. I use Akraprovic Evolution Exhaust presently and I am very happy with the exhaust sound and no drone.
|
Appreciate
0
|
03-02-2010, 06:04 PM | #6 | |
Captain
107
Rep 805
Posts |
Quote:
|
|
Appreciate
0
|
03-02-2010, 06:15 PM | #7 | ||
Major General
684
Rep 5,069
Posts
Drives: BMW 230i Msport w/LSD
Join Date: Nov 2007
Location: Astral Projecting: ∞ 23.516 -122 02.625 0242.101 ĕv'rē-hwâr'
iTrader: (16)
Garage List 2009 Porsche 911 997.2 [10.00]
2019 Hyundai N (Sold) [10.00] 2013 BMW M3 (Sold) [10.00] 2011 1M Coupe (Sold) [8.78] 2008 E90 M3 (Sold) [8.60] 2007 Z4 Mcpe (Sold) [9.50] 2005 BMW M3 (Sold) [10.00] |
Quote:
Quote:
DINAN TECH SHEET: "Or it was possible to get good flow and a low frequency drone with 4 tailpipe tips, but it was impossible to get both. We considered using an external Helmholtz chamber like some companies have done. But this added additional weight and cost and was deemed unacceptable. Analyzing other after-market manufacturer’s mufflers revealed that they had all made a compromise because of these problems. Either they had high backpressure from keeping the BMW design or very loud low frequency drone with straight through twin muffler designs or heavy expensive exhausts with straight through designs and external Helmholtz chambers."
__________________
|
||
Appreciate
0
|
03-02-2010, 06:20 PM | #8 |
Major General
258
Rep 5,012
Posts |
The right way to phrase that is: 'it drones the least' . EVERY aftermarket exhaust will drone. How much? Depends on your definition of drone and how loud the exhaust is. He's not the first to say Dinan drones, but it's pretty well known it's one of the systems that drones the least. And/or has the least increase in cabin noise over stock. Again, all such systems will be louder inside; whether it's classified as drone or not depends on your definition of drone, noise tolerance, how you drive (stereo blasting, etc), and so on. Most folks want to describe their exhaust as the noisiest outside but 'no drone' .
Since I'm so sensitive to drone (believe me, I know what it is), I decided to stay stock, and just painted the muffler black. Didn't want to buy blindly again, since every single time I've ended up selling my exhausts at a big loss. Good luck. |
Appreciate
0
|
03-02-2010, 06:31 PM | #9 | |
BMW n00b
50
Rep 1,143
Posts |
Quote:
__________________
09 SpaceGray M3 DCT
Power: Dinan 3.62, Gintani Race Mufflers, Dinan Intake, Gintani Xpipe, RPi Scoops Cosmetic: Vrs Poly-Lip, CSL Trunk, LED Interior Lights, LUX H8, Smoked Tails, Challenge Diffuser |
|
Appreciate
0
|
03-02-2010, 07:34 PM | #10 |
yodog
197
Rep 5,025
Posts |
Someone sell me their Dinan!!!
__________________
2009 E92 M3 | Alpine White | Black Extended | Advan RS | Turner Test Pipes | Dinan Axle-Back | OETuning | Eibach Springs | UUC SSK | VRS Front Lip | VRS Type I Diffuser | Matte Black | RPi Scoops | MS Filter | Yokohama AD08 | F1 Pinnacle Special Thanks: Gintani | OETuning | eAs |
Appreciate
0
|
03-03-2010, 12:37 AM | #11 | |
Lieutenant Colonel
65
Rep 1,676
Posts |
i call BS i have the Dinan and there is no drone anywhere at any rpm ever, and i have the Dinan Midpipe on there as well and still no drone anywhere
out of the two if one would drone it would be the Akra Quote:
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
|
Appreciate
0
|
03-03-2010, 12:39 AM | #12 | |
Lieutenant Colonel
65
Rep 1,676
Posts |
you must have the hearing of a dog or something bc i have the Dinan and my hearing is good and i have no drone at all anywhere in the rpm range
Quote:
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
|
Appreciate
0
|
03-03-2010, 03:02 AM | #13 | |
Moderating
418
Rep 2,047
Posts |
Quote:
Safer to say they are the best two systems for people who are sensitive to drone. My wife thinks my exhaust is standard now as I had Fabspeed and Remus set up before, that trumps any other test IMO |
|
Appreciate
0
|
03-03-2010, 08:20 AM | #14 |
Private First Class
22
Rep 153
Posts |
Happy with my DINAN mufflers, little louder than stock, maybe a touch too quiet for me though. Overall no regrets. the BMW techs that installed them thought they sounded like a Ferrari that they had been doing some work on. Not sure I fully agree but its an improvement over stock.
chuck |
Appreciate
0
|
03-03-2010, 12:35 PM | #15 |
Major General
258
Rep 5,012
Posts |
And you think you're unbiased??? . Anyway, you can't argue Dinan (and ALL other aftermarket exhausts) is louder than stock. And drone is basically unwanted cabin noise, which is 100% subjective. If we were to believe owners' accounts, no exhaust drones , which ironically can be true of any system under specific conditions (coasting, high-rpm at low throttle opening, etc). Bottom line is for 'drone sensitive' folks who don't want to risk $500 (approx loss) with a bad purchase, they better hear it under normal driving conditons before buying. My own brother calls himself 'drone sensitive', and the CEC exhaust on his Porsche (advertised as 'no drone') was driving me nuts, but it didn't bother him. I always kept the rpm much higher when I drove, which is not how I'd like to drive my own car all the time. His threshold is simply higher up the dB scale . BUt he hasn't put an aftermarket exhaust on his new Porsche. Maybe he was lying . Good day gang.
Last edited by JCtx; 03-03-2010 at 12:42 PM.. |
Appreciate
0
|
03-03-2010, 01:22 PM | #16 |
Major General
248
Rep 6,125
Posts |
Can't say what % but it's noticeably louder but not annoying at idle with mean, rumble tone.
And before it's louder or not, first thing you notice is the different type of tone (mean, rumbling compare to gentle note from the stock). To me, I didn't want to go much louder exhaust but wanted to have better tone so I picked up Dinan.
__________________
PAST: F80 M3 ZCP | 911.1 C2S | F10 M5 ZCP | E70 X5M | E90 M3 | E46 M3 | E36 M3 |
Appreciate
0
|
03-03-2010, 01:47 PM | #17 |
Colonel
108
Rep 2,279
Posts |
Dinan axle-back exhaust owner here.
During cold startup, I'd estimate that the Dinan is 25% louder than stock. After the cold startup cycle is over and the car is idling smoothly, the Dinan is MAYBE 10% louder than stock. What you notice more than the change in volume is the change in tone. The Dinan is much deeper and has a more aggressive rumble. As far as drone, every exhaust I've ever heard for the M3, including stock, has it. It's simply a question of (1) how much and (2) where it occurs in the rev range. It's also a subjective issue that depends on the ear and tolerance of a particular person, which is why one person will say an exhaust drones and another says it doesn't. Like the stock exhaust, the drone on the Dinan is barely even noticeable (my wife, for example, didn't notice it) and not annoying. Also, like the stock exhaust, the drone on the Dinan does not occur at cruising speeds. In fact, the drone on the Dinan is so unobtrusive, I'd have no question recommending the Dinan even to those with the most sensitive ears (I'm one of them).
__________________
'09 Interlagos Blue E92 M3 (sold to a good home)
|
Appreciate
0
|
03-04-2010, 12:19 AM | #19 | |
Lieutenant Colonel
65
Rep 1,676
Posts |
i feel i am unbiased yes. of course it is louder then stock that is the whole point bc we want sound. i am talking about drone
i am sensitive to drone, i owned one set up that droned bad once on one of my cars and after that i said i will never have one that drones again bc i can't stand it and in my last 3 M cars i have had the Dinan set ups and have had no drone at all. and people who ride in my car can't believe that there is no drone in the cabin when it sounds that good outside the car, like a ferrari as one person put it. has a nice exotic tone to it and no drone everyone is different and may hear it different ways, so if you hear drone then i guess you got drone, i just know 99.9% of the people running the Dinan set up never hear drone take care Quote:
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
|
Appreciate
0
|
03-04-2010, 12:20 AM | #20 | |
Lieutenant Colonel
65
Rep 1,676
Posts |
+1, the Dinan rear is what should of come stock on the M3 from the factory
Quote:
__________________
Street- 08 E92 M3- Sparkling Graphite/ Fox Red/6sp
Track- 10 CRF 250-PR2 Race Motor/Ohlins TTX Susp Hauler- 06 Ford Skyjacker F250 4WD |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|