Berk technology muffler delete - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

whiteoutfr-s · 04-30-2014, 04:54 AM

Hello just wanna know which is louder the single exit or dual exit thanks.

xia · 04-30-2014, 05:33 AM

Both.

Had the dual.

sirsol66 · 04-30-2014, 12:44 PM

Dual is louder (significantly); I've heard both in person (and own the dual on my 2014).

My dual, with no other mods, is about the same volume as a single with a catless front pipe.

whiteoutfr-s · 05-01-2014, 12:06 AM

thank you sir. can you rate it on 1-10 the difference?

Kelbyat07 · 05-01-2014, 12:34 AM

Um just to warn you that these exhaust are LOUD no matter which you choose . I went with the dual because it looks better, but if you want to go the cheaper route then get the single.

1086 · 05-01-2014, 02:41 AM

Single is pretty damn loud - loved it but had to sell it after about ~1 month of use, I think, can't totally remember. Too many children in my neighborhood, couple that with early bed-time. So I assume that equals potentially unhappy parents lol

CSG Mike · 05-01-2014, 02:50 AM

The dual is louder...

1086 · 05-01-2014, 03:04 AM

Quote:

Originally Posted by CSG Mike

The dual is louder...

Really? That is bizarre. I am running the WORKS resonated axle back and that is suiting me quite well.

ButtonMasher · 05-01-2014, 03:05 AM

Any problems with lack of back pressure with the new delete?

Sent from my Nexus 4 using Tapatalk

sirsol66 · 05-01-2014, 10:03 PM

I've never noticed any issues. Axle back/muffler deletes are usually what I run on all of my cars (including 2 evo's), and honestly I've never seen a performance gain or decrease.

As for levels, the ones I've heard:

Stock: 5
Works A-B: 7
Single berk (no resonator): 8
Single berk, with catless front: 9.5
Dual berk: 10

The dual berk also has a pretty decent resonance right around 2000rpm. I've learned to just avoid speeds that are at that RPM in a specific gear. The Works doesn't seem to have any from my friend's car though.

04-30-2014, 04:54 AM	#1
whiteoutfr-s Member Join Date: Mar 2013 Drives: whiteout Location: california Posts: 23 Thanks: 3 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Berk technology muffler delete Hello just wanna know which is louder the single exit or dual exit thanks.

04-30-2014, 12:44 PM	#3
sirsol66 Senior Member Join Date: Apr 2013 Drives: 2013 FRS- Hot Lava Location: Michigan Posts: 674 Thanks: 16 Thanked 162 Times in 115 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Dual is louder (significantly); I've heard both in person (and own the dual on my 2014). My dual, with no other mods, is about the same volume as a single with a catless front pipe. Last edited by sirsol66; 05-18-2017 at 08:50 PM.

05-01-2014, 12:34 AM	#5
Kelbyat07 Poor College Kid Join Date: Mar 2013 Drives: ~.~ Location: Chicago Posts: 2,801 Thanks: 246 Thanked 2,182 Times in 1,249 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	Um just to warn you that these exhaust are LOUD no matter which you choose . I went with the dual because it looks better, but if you want to go the cheaper route then get the single. __________________

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04-30-2014, 05:33 AM	#2
xia Senior Member Join Date: May 2013 Drives: 1995 Supra TT & 2013 FRS Location: Black Hole Posts: 247 Thanks: 220 Thanked 63 Times in 45 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Both. Had the dual.

05-01-2014, 12:06 AM	#4
whiteoutfr-s Member Join Date: Mar 2013 Drives: whiteout Location: california Posts: 23 Thanks: 3 Thanked 3 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	thank you sir. can you rate it on 1-10 the difference?

05-01-2014, 02:41 AM	#6
1086 Senior Member Join Date: Nov 2013 Drives: UM86 - 6MT Location: CA (elevation 85 ft.) Posts: 518 Thanks: 383 Thanked 249 Times in 126 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Single is pretty damn loud - loved it but had to sell it after about ~1 month of use, I think, can't totally remember. Too many children in my neighborhood, couple that with early bed-time. So I assume that equals potentially unhappy parents lol

05-01-2014, 02:50 AM	#7
CSG Mike Join Date: Jul 2012 Drives: S2000 CR Location: Orange County Posts: 14,533 Thanks: 8,920 Thanked 14,178 Times in 6,835 Posts Mentioned: 966 Post(s) Tagged: 14 Thread(s)	The dual is louder...

05-01-2014, 03:05 AM	#9
ButtonMasher Senior Member Join Date: Dec 2013 Drives: 2013 Ultramarine Scion FR-S Location: So Cal Posts: 148 Thanks: 43 Thanked 24 Times in 18 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Any problems with lack of back pressure with the new delete? Sent from my Nexus 4 using Tapatalk

05-01-2014, 10:03 PM	#10
sirsol66 Senior Member Join Date: Apr 2013 Drives: 2013 FRS- Hot Lava Location: Michigan Posts: 674 Thanks: 16 Thanked 162 Times in 115 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	I've never noticed any issues. Axle back/muffler deletes are usually what I run on all of my cars (including 2 evo's), and honestly I've never seen a performance gain or decrease. As for levels, the ones I've heard: Stock: 5 Works A-B: 7 Single berk (no resonator): 8 Single berk, with catless front: 9.5 Dual berk: 10 The dual berk also has a pretty decent resonance right around 2000rpm. I've learned to just avoid speeds that are at that RPM in a specific gear. The Works doesn't seem to have any from my friend's car though.

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