high power-low db prototype muffler - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

AceHeader-MT · 09-25-2015, 05:10 AM

ODM project sneak peak

Happy driving,
Team Ace

Captain Snooze · 09-25-2015, 05:26 AM

Could you please tell me/us what style of muffler is this? That is, is it baffled, straight through? Is there packing material involved that is going to age and result in a louder muffler?
What are the chances of a single exit muffler with the same design criteria of high flow low noise?

Kodename47 · 09-25-2015, 05:48 AM

Initial impressions is that the exits hang too low, it doesn't look quite right. Might depend on larger tips but those look smaller than OEM.

Brzerker · 09-25-2015, 10:12 AM

Quote:

Originally Posted by Captain Snooze

Could you please tell me/us what style of muffler is this? That is, is it baffled, straight through? Is there packing material involved that is going to age and result in a louder muffler?
What are the chances of a single exit muffler with the same design criteria of high flow low noise?

This is a little OT question, but I have always wondered, why when the packing material has "aged" there will be an increase in volume?

phobos512 · 09-25-2015, 11:00 AM

Quote:

Originally Posted by Brzerker

This is a little OT question, but I have always wondered, why when the packing material has "aged" there will be an increase in volume?

It doesn't age per se - it gets moved around and compacted as a result of the exhaust flow and thus doesn't absorb sound as readily as time goes on.

AceHeader-MT · 09-25-2015, 11:03 AM

Quote:

Originally Posted by Captain Snooze

Could you please tell me/us what style of muffler is this? That is, is it baffled, straight through? Is there packing material involved that is going to age and result in a louder muffler?
What are the chances of a single exit muffler with the same design criteria of high flow low noise?

Hey Snooze, muffler has a unique baffle design. Since it is not ours that's all I can say.

There is no packing material.

It's up to the designer if they want to do a single exit version. But everything is possible

Quote:

Originally Posted by Kodename47

Initial impressions is that the exits hang too low, it doesn't look quite right. Might depend on larger tips but those look smaller than OEM.

If the general public thinks it's too low it's a simple thing to modify. Again, up to the designers.

The tips are from a factory FR-S which are small to begin with.

sw20kosh · 09-25-2015, 11:11 AM

Has it been tested with ace header and front pipe?

Any sound clips or videos? I can't wait to ditch the rattling stock axleback!

RehabJeff86 · 09-25-2015, 11:57 AM

Im in for single exit weight saving version

AceHeader-MT · 09-25-2015, 12:10 PM

Quote:

Originally Posted by sw20kosh

Has it been tested with ace header and front pipe?

Any sound clips or videos? I can't wait to ditch the rattling stock axleback!

Car has Type B350 with OEM FP and MP

Not the best video...constructive criticism is greatly appreciated

[ame="https://www.youtube.com/watch?v=pcc_yUqpuwQ"]ODM prototype - YouTube[/ame]

Shady195 · 09-25-2015, 01:25 PM

WOW! Thats quiet!

I think for someone looking for a near stock sound it will be perfect. However while I'm okay with the DB level, I wish the exhaust note was sharper.

ck-GT86 · 09-25-2015, 01:36 PM

Sounds good to me, I'd want that if it was a full catback plus bigger tips.

.ck

djliquidsteele · 09-25-2015, 09:17 PM

Yeah, I think bigger tips are a must. Say 4", angle cut to match the angle of the number cutout.

olsonpg · 09-25-2015, 09:26 PM

Excited!!

Any plans for full catback?

4.5 / 4 inch tips? Ti option? Ballpark Eta? (i know thats a little obnoxious to ask so early in the r&d, but if you think you'll have the first ones out within a year I would definitely wait).

Just installed Ace header and in the market for a catback now.

Love your products !

Phil

Aztec · 09-25-2015, 09:34 PM

At what point would this be needed over stock OEM catback? Can you test gains, if any, from using this rather than a stock catback?

09-25-2015, 05:10 AM	#1
AceHeader-MT Senior Member Join Date: Oct 2013 Drives: 2012 FR-S Location: Taiwan Taichung Posts: 225 Thanks: 359 Thanked 695 Times in 159 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	high power-low db prototype muffler ODM project sneak peak Happy driving, Team Ace Attached Images

09-25-2015, 05:26 AM	#2
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,723 Thanks: 3,993 Thanked 9,346 Times in 4,127 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	Could you please tell me/us what style of muffler is this? That is, is it baffled, straight through? Is there packing material involved that is going to age and result in a louder muffler? What are the chances of a single exit muffler with the same design criteria of high flow low noise? __________________ My car is completely stock except for all the mods.

09-25-2015, 05:48 AM	#3
Kodename47 Senior Member Join Date: Oct 2012 Drives: UK GT86 Location: UK Posts: 3,040 Thanks: 185 Thanked 1,629 Times in 1,112 Posts Mentioned: 155 Post(s) Tagged: 1 Thread(s)	Initial impressions is that the exits hang too low, it doesn't look quite right. Might depend on larger tips but those look smaller than OEM. __________________ .: Stealth 86 :. Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger Kodename 47 DJ: Soundcloud / Instagram / Facebook

09-25-2015, 11:11 AM	#7
sw20kosh Senior Member Join Date: Jul 2012 Drives: 2013 Black FR-S Location: SF Posts: 3,030 Thanks: 881 Thanked 2,014 Times in 990 Posts Mentioned: 153 Post(s) Tagged: 1 Thread(s)	Has it been tested with ace header and front pipe? Any sound clips or videos? I can't wait to ditch the rattling stock axleback! __________________ 86DRIVE Challenge

09-25-2015, 11:57 AM	#8
RehabJeff86 Senior Member Join Date: Mar 2013 Drives: 2013 WhiteOut FR-S Location: Dublin,CA Posts: 969 Thanks: 899 Thanked 492 Times in 306 Posts Mentioned: 67 Post(s) Tagged: 2 Thread(s)	Im in for single exit weight saving version __________________ 2013 Scion FR-S whiteout 2012 Porsche Panamera S carbon grey 2008 Range Rover Sport SS black - sold 2004 BMW M3 alpine wies - sold

09-25-2015, 01:25 PM	#10
Shady195 Senior Member Join Date: Jun 2014 Drives: '13 10 Series FRS #1203 Location: Albany, NY Posts: 850 Thanks: 7 Thanked 385 Times in 220 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	WOW! Thats quiet! I think for someone looking for a near stock sound it will be perfect. However while I'm okay with the DB level, I wish the exhaust note was sharper.

09-25-2015, 01:36 PM	#11
ck-GT86 Senior Member Join Date: Aug 2013 Drives: '13 Raven FR-S, MT Location: NorCal Posts: 884 Thanks: 788 Thanked 516 Times in 286 Posts Mentioned: 54 Post(s) Tagged: 0 Thread(s)	Sounds good to me, I'd want that if it was a full catback plus bigger tips. .ck __________________ \|\| My Build Thread \|\|

09-25-2015, 09:17 PM	#12
djliquidsteele Senior Member Join Date: Apr 2012 Drives: Scion FR-S Location: Louisville, KY Posts: 498 Thanks: 62 Thanked 130 Times in 92 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Yeah, I think bigger tips are a must. Say 4", angle cut to match the angle of the number cutout.

09-25-2015, 09:26 PM	#13
olsonpg Senior Member Join Date: Jun 2015 Drives: BRZ. R34 GT-T Location: Calgary Posts: 762 Thanks: 737 Thanked 613 Times in 302 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Excited!! Any plans for full catback? 4.5 / 4 inch tips? Ti option? Ballpark Eta? (i know thats a little obnoxious to ask so early in the r&d, but if you think you'll have the first ones out within a year I would definitely wait). Just installed Ace header and in the market for a catback now. Love your products ! Phil

09-25-2015, 09:34 PM	#14
Aztec Lost in the twisties Join Date: Sep 2014 Drives: 2014 BRZ Dark Gray Metallic Location: Beaverton, OR Posts: 661 Thanks: 436 Thanked 297 Times in 187 Posts Mentioned: 33 Post(s) Tagged: 2 Thread(s)	At what point would this be needed over stock OEM catback? Can you test gains, if any, from using this rather than a stock catback? __________________ NEW CAR!🚨🏎️⛽ 2014 BRZ: Edelbrock SC, CSG ZachTune, Jackson Radiator/Oil cooler, lightweight flywheel, CNT UEL, Berk OP/FP, Ark Grip Catback, Carbon fiber Driveshaft Aztec's Build Thread

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