[rjd_F30]

Originally Posted by Noelified

Ha Ha. When I was catless and AWE, people in the office at work said they could hear me driving away as loud as a Harley as if they were outside. I was under mild and slow acceleration at the time. I'm honestly telling you I could not talk on the BT phone unless cruising at 80 mph LOL. I wish we were running these tests when I had the catless on. Stock cat and AWE is real nice for my taste....right now.

Here is a picture, the red oval is 5 offices with double pane industrial windows that don't open along the yard side. A middle office is where my buddy was sitting. The red arrow was how far away the road is that I was driving away on.
Attachment 1917388

love the illustration. That's pretty insane that it's that loud. People have told me that my car's fairly loud from the outside, some say "too loud for a 4 cylinder", I should say they're lucky I don't have an AWE system lol. Now I think I kinda want one...

[BunkerJ]

Sorry guys. Busy weekend as I had a competition. I'll get mine at lunch today, I promise.

[sspade]

I got an N26, catless DP, stock MP/muffler sound sample coming soon as well.

[BunkerJ]

Yikes. Not sure who though my setup would be louder. Lol

So, here are my results. I did both a centered 3 feet (since I have quads) and a left (shortest route for piping) 3 feet. The latter was louder but not top dawg in peak. I will say that my phone does possibly have a wishy-washy microphone, as it doesn't work when I use speakerphone (sounds muffled apparently), so this will be my submission and I'll take a look at trying my GF's newer iPhone or possibly a newer tablet of mine. Not too bad though! My idle does seem to be quieter.

[rjd_F30]

Originally Posted by BunkerJ

Yikes. Not sure who though my setup would be louder. Lol

So, here are my results. I did both a centered 3 feet (since I have quads) and a left (shortest route for piping) 3 feet. The latter was louder but not top dawg in peak. I will say that my phone does possibly have a wishy-washy microphone, as it doesn't work when I use speakerphone (sounds muffled apparently), so this will be my submission and I'll take a look at trying my GF's newer iPhone or possibly a newer tablet of mine. Not too bad though! My idle does seem to be quieter.

I think we all thought your setup would be louder lol. I'm pretty surprised, the AWE with stock cat is nearly as load as my catless setup, so I think it would only make sense that yours would be at least a little louder. Also, one of your idle readings was quieter than stock, so I'm gonna say your phone mic had a hand in this lol. I would say it's the quads but for shits and giggles I tried putting my phone in the center, a bit offset from the tips, and hit hardly made a difference. So this is what I've gathered would be your official entries:

Idle: 76.9dB
Rev: 111.7dB

Either we were all wrong, or something's up with your phone mic lol.

[BunkerJ]

Originally Posted by rjdnyy224

I think we all thought your setup would be louder lol. I'm pretty surprised, the AWE with stock cat is nearly as load as my catless setup, so I think it would only make sense that yours would be at least a little louder. Also, one of your idle readings was quieter than stock, so I'm gonna say your phone mic had a hand in this lol. I would say it's the quads but for shits and giggles I tried putting my phone in the center, a bit offset from the tips, and hit hardly made a difference. So this is what I've gathered would be your official entries:

Idle: 76.9dB
Rev: 111.7dB

Either we were all wrong, or something's up with your phone mic lol.

I mean, I wouldn't be surprised if it were the mic. I'll let that be my submission for now. I'll get my hands on my SO's phone and see how it performs then. I did a few revs on the last one just to be sure and quickly left, only to find out nothing really changed. Drove by there 30 min later and a cop was just sitting in that spot, lol.

[rjd_F30]

Originally Posted by BunkerJ

I mean, I wouldn't be surprised if it were the mic. I'll let that be my submission for now. I'll get my hands on my SO's phone and see how it performs then. I did a few revs on the last one just to be sure and quickly left, only to find out nothing really changed. Drove by there 30 min later and a cop was just sitting in that spot, lol.

Yah, I wouldn't either. And if that's not a testament to being loud, attracting police attention, idk what is lol. Either way, you're on the board, pending a potential future re-test. Thanks for submitting

[MONSTAR]

Awesome, I might get in on this over the weekend. That's one thing that really bothered me when I was looking to do my muffler delete -- everyone seems to film their sound clips in a [n open] garage or car wash bay where it will obviously be much louder.

[rjd_F30]

Originally Posted by MONSTAR

Awesome, I might get in on this over the weekend. That's one thing that really bothered me when I was looking to do my muffler delete -- everyone seems to film their sound clips in a [n open] garage or car wash bay where it will obviously be much louder.

Can't say I'm not guilty of filming exhaust clips in parking garages/car wash bays as well, it's hard to resist lol. But yah that's the goal, to be objective.

It would be great to have a muffler delete entry on the board

[Noelified]

Originally Posted by BunkerJ

I mean, I wouldn't be surprised if it were the mic. I'll let that be my submission for now. I'll get my hands on my SO's phone and see how it performs then. I did a few revs on the last one just to be sure and quickly left, only to find out nothing really changed. Drove by there 30 min later and a cop was just sitting in that spot, lol.

Originally Posted by rjdnyy224

Yah, I wouldn't either. And if that's not a testament to being loud, attracting police attention, idk what is lol. Either way, you're on the board, pending a potential future re-test. Thanks for submitting

My vote is the mic

[N26Ghost]

Going to get this app saved and get my data in. '14 328i N26 with stock DP, both cats, 335i muffler with flapper mod.

[N26Ghost]

Open lot, no cars.

[rjd_F30]

Originally Posted by N26Ghost

Going to get this app saved and get my data in. '14 328i N26 with stock DP, both cats, 335i muffler with flapper mod.

Nice! That'll be an interesting one, I'm excited to see how it stacks up. Thanks for joining in

EDIT: Didn't see you already posted results, we posted at the same exact time lol.

[rjd_F30]

Originally Posted by N26Ghost

Open lot, no cars.

Awesome thanks for sharing! The rev looks like about what I'd expect. Around the same volume as stock, but judging by your videos (on the other thread) with a much nicer tone. Sounds like the 335i muffler's a good option for people who want tone but not volume. A note about your idle avg. though, it seems to be a bit high, the highest we've had so far actually. And looking at the graph there's a pretty big spike and then slow decline like maybe it was a cold start? We're just trying to measure the warmed up, normal a/c off idle.

[N26Ghost]

Originally Posted by rjdnyy224

Awesome thanks for sharing! The rev looks like about what I'd expect. Around the same volume as stock, but judging by your videos (on the other thread) with a much nicer tone. Sounds like the 335i muffler's a good option for people who want tone but not volume. A note about your idle avg. though, it seems to be a bit high, the highest we've had so far actually. And looking at the graph there's a pretty big spike and then slow decline like maybe it was a cold start? We're just trying to measure the warmed up, normal a/c off idle.

I had just returned from running an errand and checked my temps before starting the test, all were nominal. I definitely hear what you described, as in, any start with that flap open is a loud one, very bassy.

[sspade]

Originally Posted by rjdnyy224

Awesome thanks for sharing! The rev looks like about what I'd expect. Around the same volume as stock, but judging by your videos (on the other thread) with a much nicer tone. Sounds like the 335i muffler's a good option for people who want tone but not volume. A note about your idle avg. though, it seems to be a bit high, the highest we've had so far actually. And looking at the graph there's a pretty big spike and then slow decline like maybe it was a cold start? We're just trying to measure the warmed up, normal a/c off idle.

He's running JB+

(Not sure if that matters).

N26Ghost can you confirm that these were fully warmed up readings?

[rjd_F30]

Originally Posted by N26Ghost

I had just returned from running an errand and checked my temps before starting the test, all were nominal. I definitely hear what you described, as in, any start with that flap open is a loud one, very bassy.

Yah, starts can be quite loud, even on a stock exhaust. However, we're just trying to get a normal idle, not a startup reading. As in, the car's already on and running and then you just measure the sound of the idle. If that's what you did and I'm misunderstanding that's my bad, you're graph just looks like it was a startup not just a steady idle.

[rjd_F30]

Originally Posted by sspade

He's running JB+

(Not sure if that matters).

N26Ghost can you confirm that these were fully warmed up readings?

I'm not really concerned about tunes... they can affect the general sound of the sound the car makes, if that makes any sense, but not really the volume.

[N26Ghost]

Fvck...I thought I'd been careful to observe the procedure...apparently English is my second language.

Lemme take another reading without the startup and just the idle.

[Noelified]

Originally Posted by rjdnyy224

I'm not really concerned about tunes... they can affect the general sound of the sound the car makes, if that makes any sense, but not really the volume.

Do all tunes keep the idle at stock RPM? Stock I think I'm idling around 750RPM I believe but will check tomorrow. (after cold start).

[N26Ghost]

Here ya go

[Noelified]

Originally Posted by N26Ghost

Here ya go

Nice- Thanks for adding to the thread.