Just installed TRD exhaust. Too loud? - Page 6 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Tcoat · 11-01-2015, 01:50 AM

Quote:

Originally Posted by fitcious

im curious too

All my equipment is at my main plant and I won't be there until Wednesday so check back then.

V_86 · 11-01-2015, 06:22 PM

Quote:

Originally Posted by stevesnj

To each their own but rear seat down driving?

I had the stock muffler and midpipe in the car for a day and a half. Believe me I don't like driving with the seats down, even before the exhaust. I've thought of getting a trunk liner and maybe adding some foam on the inside of it. Don't get me wrong I LOVE the sound on acceleration, makes a small poping noise when you shift like an Audi S engine might.

Tcoat · 11-01-2015, 06:30 PM

Quote:

Originally Posted by stevesnj

To each their own but rear seat down driving? Of course it will be louder! lol I am going to put sound deadener in the rear where the tools and spare are. Highway driving tire noise is louder than the TRD exhaust. But im in jersey where potholes and concrete highways stay alive for generations.

While I have the meter out I am going to take some readings with seat in both positions as well. I personally don't notice a huge difference between up and down. I may be a tad deef though.

bcj · 11-02-2015, 12:54 PM

V_86 · 11-03-2015, 01:38 PM

Tried something and unplugged the 12v adapter plug I had used to mute the sound tube. Somehow, and I can't explain it, the increased induction noise really improved the sound! Maybe the balance of induction and exhaust noise? Either way, I love it.

Tcoat · 11-05-2015, 11:52 AM

Quote:

Originally Posted by Tcoat

While I have the meter out I am going to take some readings with seat in both positions as well. I personally don't notice a huge difference between up and down. I may be a tad deef though.

I have not forgotten this. Did some preliminary readings and quite frankly don't believe them so going to do a second set to verify. Will let everybody know what is what after that.

V_86 · 11-05-2015, 12:51 PM

On the bright side, it seems to be quieting down (for now). It only had ~700 miles on it, maybe it needed a couple hundred more...or I'm just getting used to it (and loving it).

V_86 · 11-05-2015, 07:25 PM

Quote:

Originally Posted by Tcoat

I have not forgotten this. Did some preliminary readings and quite frankly don't believe them so going to do a second set to verify. Will let everybody know what is what after that.

Any readings?

Tcoat · 11-05-2015, 07:35 PM

Quote:

Originally Posted by V_86

Any readings?

Yes but want to do again as it is way too weird to post. I am going to data log this time since I may have screwed up reading while trying to drive. If I posted the results I have now it may just confuse the matter. I will do a whole right up when I am done (and explain the weird part once I know if it was an error or not).

Astral Abyss · 11-05-2015, 11:58 PM

Unleash the madness!

Mim · 11-06-2015, 03:12 AM

I'm actually really looking forward to this @Tcoat. I'm assuming there wouldn't be too much difference in going with the Sti muffler VS the TRD. I'm more interested in seeing whether it might have a settling in period where the carbon build up might mellow the sound out over time.

V_86 · 11-06-2015, 07:36 PM

@Tcoat

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What's the verdict

Tcoat · 11-06-2015, 10:31 PM

Quote:

Originally Posted by V_86

@Tcoat Attachment 124517

What's the verdict

Well just to tide you over. It has dropped 2 decibels at 4000 rpm in a year. You will have to wait for the rest of the info as I need some time to put everything together in a coherent manner. There is a shitload of data and it reveled some very interesting things that I would never have guessed.

V_86 · 11-07-2015, 12:45 PM

ok so 2 db is an insignificant difference. The wind changing direction could probably produce more than that.

11-06-2015, 03:12 AM	#81
Mim Senior Member Join Date: Apr 2013 Drives: MY11 Maxima 350st, MY15 BRZ Location: Sydney, Australia Posts: 534 Thanks: 304 Thanked 342 Times in 185 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I'm actually really looking forward to this @Tcoat. I'm assuming there wouldn't be too much difference in going with the Sti muffler VS the TRD. I'm more interested in seeing whether it might have a settling in period where the carbon build up might mellow the sound out over time. __________________ MY15 CWP A/T BRZ \| Leather heated seats \| STI CAI filter, A/T leather shifter, strut brace, V-brace, draw stiffener, battery tie down, Radiator cap, Oil cap, push start button \| TRD door stabilizer \| YoSpeed STI console garnish \| Pioneer AVIC-F70DAB + Rev-camera, TS-WX710A sub \| JL speakers, Amp \| TOMS' Clear Brake Lights \| Cusco 4.556 FD \| Driveshaft Shop aluminum shaft \| Tein FlexZ, EDFC AP+GPS \| Crawford BPB

11-06-2015, 07:36 PM	#82
V_86 Senior Member Join Date: Dec 2014 Drives: 2015 Asphalt FR-S Location: SoCal Posts: 304 Thanks: 71 Thanked 83 Times in 52 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	@Tcoat What's the verdict

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11-03-2015, 01:38 PM	#75
V_86 Senior Member Join Date: Dec 2014 Drives: 2015 Asphalt FR-S Location: SoCal Posts: 304 Thanks: 71 Thanked 83 Times in 52 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Tried something and unplugged the 12v adapter plug I had used to mute the sound tube. Somehow, and I can't explain it, the increased induction noise really improved the sound! Maybe the balance of induction and exhaust noise? Either way, I love it.

11-05-2015, 12:51 PM	#77
V_86 Senior Member Join Date: Dec 2014 Drives: 2015 Asphalt FR-S Location: SoCal Posts: 304 Thanks: 71 Thanked 83 Times in 52 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	On the bright side, it seems to be quieting down (for now). It only had ~700 miles on it, maybe it needed a couple hundred more...or I'm just getting used to it (and loving it).

11-05-2015, 11:58 PM	#80
Astral Abyss Member Join Date: Apr 2015 Drives: 2016 Halo FR-S Location: Tucson, AZ Posts: 66 Thanks: 19 Thanked 43 Times in 21 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Unleash the madness!

11-07-2015, 12:45 PM	#84
V_86 Senior Member Join Date: Dec 2014 Drives: 2015 Asphalt FR-S Location: SoCal Posts: 304 Thanks: 71 Thanked 83 Times in 52 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	ok so 2 db is an insignificant difference. The wind changing direction could probably produce more than that.

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