Way too loud. Best fix for minimal impact? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

transition · 03-21-2014, 12:39 PM

So i finally have the car all setup with JDL headers, over pipe, front pipe and a Perrin 3" resonated exhaust. And holy shit is this thing LOUD. Embarrassingly loud over 3k RPM's. So now i need to figure out the best way to tame this thing while minimizing losses. I'm thinking the stock catback system might be the way to go here. Anyone else gone through the same issue?

swift996 · 03-21-2014, 12:44 PM

I have this setup, perhaps it might add context. I too have the same too loud issue:

Innovate Supercharger
FA20Club Catted Header
Perrin Overpipe 2.5"
FA20Club Front Pipe
Flowmaster Cat-Back 2.5"

With the setup above and the stock cat back it was a little aggressive on a cold start but otherwise sounded stock all around. Once I put my cat-back on with the combination of everything else, it got too loud and raspy. The stock cat-back is going to choke off some power but is very quiet compared to my cat-back. I don't want to risk buying another cat-back and having the same issue. So I think I'm going back to the stock cat-back.

transition · 03-21-2014, 12:46 PM

Quote:

Originally Posted by swift996

I have this setup, perhaps it might add context. I too have the same too loud issue:

Innovate Supercharger
FA20Club Catted Header
Perrin Overpipe 2.5"
FA20Club Front Pipe
Flowmaster Cat-Back 2.5"

With the setup above and the stock cat back it was a little aggressive on a cold start but otherwise sounded stock all around. Once I put my cat-back on with the combination of everything else, it got too loud and raspy. The stock cat-back is going to choke off some power but is very quiet compared to my cat-back. I don't want to risk buying another cat-back and having the same issue. So I think I'm going back to the stock cat-back.

Yea i mean i'm literally sitting here with my ears ringing from a half-hour drive. It's like the BRZ Tinnitus edition now.

Hawaiian · 03-21-2014, 12:51 PM

Quote:

Originally Posted by transition

Yea i mean i'm literally sitting here with my ears ringing from a half-hour drive. It's like the BRZ Tinnitus edition now.

I would have suggested going to the stock catback, but the 3" might be a problem.

BlueDubbinTDI · 03-21-2014, 12:53 PM

Either ditch the 3" or get a turbo. No real need to have 1 without the other.

The Slow One · 03-21-2014, 12:54 PM

I have a feeling its the 3" catback also.. is your front pipe catted or resonated? a hfc will reduce the noise some but I think the main source is still the perrin 3" cbe.

transition · 03-21-2014, 12:57 PM

Quote:

Originally Posted by The Slow One

I have a feeling its the 3" catback also.. is your front pipe catted or resonated? a hfc will reduce the noise some but I think the main source is still the perrin 3" cbe.

Front pipe is catted.

transition · 03-21-2014, 12:57 PM

Quote:

Originally Posted by BlueDubbinTDI

Either ditch the 3" or get a turbo. No real need to have 1 without the other.

Perrin's data suggested otherwise. But yea, it comes as the expense of noise.

http://blog.perrinperformance.com/3-...ults-and-tune/

transition · 03-21-2014, 12:59 PM

Quote:

Originally Posted by Hawaiian

I would have suggested going to the stock catback, but the 3" might be a problem.

The JDL front pipe is 2.5"

mxsled · 03-21-2014, 12:59 PM

Catted and resonated frontpipe should help but the real problem is the 3" catback

XanRules · 03-21-2014, 01:03 PM

I was thinking about this same setup, but if it's really that loud I'm gonna have to reconsider. I had no idea a 3" would be that much louder than a 2.5"!

sshole · 03-21-2014, 01:15 PM

Why not Invidia Q300 or Greddy SP for the muffler? Perrin's exhaust is a bit on the louder side, especially compared to Q300 and SP, no? Or you just want to stick to 3" exhaust..

1Cor10:23 · 03-21-2014, 01:19 PM

Crap. I've got the 3" CBE and OF Header going on next month w/ stock OP/DP. Fingers crossed.

XanRules · 03-21-2014, 01:21 PM

Quote:

Originally Posted by sshole

Why not Invidia Q300 or Greddy SP for the muffler? Perrin's exhaust is a bit on the louder side, especially compared to Q300 and SP, no? Or you just want to stick to 3" exhaust..

at least in 2.5" form, the Perrin is considered one of the quietest exhausts. I will observe at the Perrin meet tomorrow to see whose exhaust is the least obnoxious.

03-21-2014, 12:39 PM	#1
transition Banned Join Date: Sep 2013 Drives: BRZ Location: Earth Posts: 206 Thanks: 43 Thanked 77 Times in 47 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Way too loud. Best fix for minimal impact? So i finally have the car all setup with JDL headers, over pipe, front pipe and a Perrin 3" resonated exhaust. And holy shit is this thing LOUD. Embarrassingly loud over 3k RPM's. So now i need to figure out the best way to tame this thing while minimizing losses. I'm thinking the stock catback system might be the way to go here. Anyone else gone through the same issue?

03-21-2014, 12:44 PM	#2
swift996 Senior Member Join Date: Nov 2011 Drives: Subaru BRZ Limited 6MT Location: Winston-Salem, NC Posts: 2,432 Thanks: 712 Thanked 954 Times in 545 Posts Mentioned: 47 Post(s) Tagged: 0 Thread(s)	I have this setup, perhaps it might add context. I too have the same too loud issue: Innovate Supercharger FA20Club Catted Header Perrin Overpipe 2.5" FA20Club Front Pipe Flowmaster Cat-Back 2.5" With the setup above and the stock cat back it was a little aggressive on a cold start but otherwise sounded stock all around. Once I put my cat-back on with the combination of everything else, it got too loud and raspy. The stock cat-back is going to choke off some power but is very quiet compared to my cat-back. I don't want to risk buying another cat-back and having the same issue. So I think I'm going back to the stock cat-back. __________________ Innovate Supercharged Black Limited BRZ 6-Speed MT(Build Thread) 2010 Cadillac CTS-V Sedan M6 w/550whp (Build Thread)

03-21-2014, 12:59 PM	#10
mxsled Senior Member Join Date: Jul 2012 Drives: Audi A3 2012 Location: Canada Posts: 163 Thanks: 193 Thanked 99 Times in 54 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Catted and resonated frontpipe should help but the real problem is the 3" catback __________________ Moto east Ecutek /JDL UEL Header/Nameless Performance axleback exhaust-Motiv overpipe/Full Perrin CAI/BC Racing Coilover/Traklite angle 18x9/Federal 595 RS-R (245-35-18)/Blackhousing,hid 4300k headlights/Crystal eyes taillight/Anarchy Motive Heavy ShiftKnob/Cusco Sport pedals/Jpm Coachworks alcantara dash panel,cluster,shift boot,

03-21-2014, 01:19 PM	#13
1Cor10:23 Senior Member Join Date: Jul 2013 Drives: '13 Whiteout FR-S (M/T) Location: GTA Posts: 1,205 Thanks: 492 Thanked 392 Times in 238 Posts Mentioned: 14 Post(s) Tagged: 1 Thread(s)	Crap. I've got the 3" CBE and OF Header going on next month w/ stock OP/DP. Fingers crossed. __________________ \|1Cor10:23 \| Whiteout FR-S \| Form Follows Function Build\|

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03-21-2014, 12:53 PM	#5
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03-21-2014, 01:03 PM	#11
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03-21-2014, 01:15 PM	#12
sshole Banned Join Date: Jan 2014 Drives: BRZ Location: VA Posts: 594 Thanks: 201 Thanked 388 Times in 195 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Why not Invidia Q300 or Greddy SP for the muffler? Perrin's exhaust is a bit on the louder side, especially compared to Q300 and SP, no? Or you just want to stick to 3" exhaust..

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