Exhaust too load - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Shoebox · 09-24-2017, 09:15 PM

Hey guys. Need some help here. I am having a hard time keeping my exhaust tame. I have a Tomei EL Header, Motiv Overpipe, Megan Front Pipe and a Stock Catback. My car is loud and raspy. Has anyone tried an HKS Resonanated front pipe or the jdl? My car was quite as stock until I changed out the front pipe and went catless. Any help here would be great. Open to any suggestions. I just want the car to be more quite for driving around town. I use a Berk track pipe for when I feel like being annoying but I don't want to always be annoying.

Thanks!

Detroiter · 09-24-2017, 09:20 PM

If you have a stock catback then you don't even know what loud is.

As for making quieter yes any sort of resonated / catted front pipe will quiet it down some. Stock is obviously the quietest front pipe.

Shoebox · 09-24-2017, 09:37 PM

Quote:

Originally Posted by Detroiter

If you have a stock catback then you don't even know what loud is.

As for making quieter yes any sort of resonated / catted front pipe will quiet it down some. Stock is obviously the quietest front pipe.

Oh I had a Tomei 80r before going to stock lol. It's more raspy than anything. Really just want it to not rasp like a Honda

phrosty · 09-24-2017, 09:41 PM

Everyone is different of course but I've found my combination of OFH + stock OP/FP + P&L catback is a real winner in sound level.

The P&L catback is just slightly louder than stock, and combined with catless header it is loud enough to get noticed when cruising but not close to approaching obnoxious unless I want it to be.

So, I guess I'd suggest going to stock FP and getting an aftermarket catback if you want it louder than that. Having at least one cat really helps smooth the sound out.

ls1ac · 09-24-2017, 10:19 PM

Some tracks now require maximum sound levels, and we have used Car Chemistry inserts.

guybo · 09-24-2017, 10:22 PM

the catless FP with no resonator is the problem. Resonators change the tone and filter out rasp. You could punch out the second cat and put the OEM FP back in place. You could go to a muffler shop and have them weld in a resonator into the Megan FP, or something into the midpipe

Simmons · 09-24-2017, 11:32 PM

Right now I have a HKS EL, nameless over/front with HFC and stock cat back.
It is quiet, but raspy.

I have a Perrin 2.5 cat-back non res going on this week.

Simmons

NRXRaptor · 09-25-2017, 04:34 PM

Quote:

Originally Posted by Detroiter

If you have a stock catback then you don't even know what loud is.

As for making quieter yes any sort of resonated / catted front pipe will quiet it down some. Stock is obviously the quietest front pipe.

From what I've read resonators don't make things quieter they just get rid of undesirable tone. That's what mufflers are for

Detroiter · 09-25-2017, 04:47 PM

Quote:

Originally Posted by NRXRaptor

From what I've read resonators don't make things quieter they just get rid of undesirable tone. That's what mufflers are for

Muffler, resonator, they are the same thing. Both alter sound via resonating it. Does a single small bottle style resonator reduce volume a ton? No, but it will reduce the volume some. A dual resonated front pipe is the best bet for reducing rasp and volume while retaining the track pipe.

JD001 · 09-25-2017, 04:48 PM

Go titanium as that will lighten the load.

x808drifter · 09-25-2017, 05:03 PM

Quote:

Originally Posted by JD001

Go titanium as that will lighten the load.

Or IMO nothing kills rasp like a snail in the exhaust flow.

Slammillionaire · 09-25-2017, 05:16 PM

Quote:

Originally Posted by Shoebox

went catless.

I think I found your problem

Shoebox · 09-26-2017, 03:10 AM

Quote:

Originally Posted by Detroiter

Muffler, resonator, they are the same thing. Both alter sound via resonating it. Does a single small bottle style resonator reduce volume a ton? No, but it will reduce the volume some. A dual resonated front pipe is the best bet for reducing rasp and volume while retaining the track pipe.

I was debating a dual resonated FP. I have no problem spending a few bucks on one. Was just curious if it would actually make a difference so I asked before spending said few bucks lol. Now have you heard anything about the "track pipes" with a muffler? Doesn't ft86speedfactoty make one? Curious if I did both those things how it would sound.

Shoebox · 09-26-2017, 03:10 AM

Quote:

Originally Posted by Slammillionaire

I think I found your problem

Catless ftw! Lol. I want to make my extra 2hp

09-24-2017, 09:15 PM	#1
Shoebox Senior Member Join Date: May 2013 Drives: 2013 Subaru BRZ Location: Lacey WA Posts: 212 Thanks: 68 Thanked 42 Times in 28 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Exhaust too load Hey guys. Need some help here. I am having a hard time keeping my exhaust tame. I have a Tomei EL Header, Motiv Overpipe, Megan Front Pipe and a Stock Catback. My car is loud and raspy. Has anyone tried an HKS Resonanated front pipe or the jdl? My car was quite as stock until I changed out the front pipe and went catless. Any help here would be great. Open to any suggestions. I just want the car to be more quite for driving around town. I use a Berk track pipe for when I feel like being annoying but I don't want to always be annoying. Thanks!

09-24-2017, 09:20 PM	#2
Detroiter Senior Member Join Date: Feb 2017 Drives: 2014 Scion FR-S Monogram Location: Michigan Posts: 215 Thanks: 149 Thanked 126 Times in 83 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	If you have a stock catback then you don't even know what loud is. As for making quieter yes any sort of resonated / catted front pipe will quiet it down some. Stock is obviously the quietest front pipe. __________________ 2014 Scion FR-S Monogram Raven OFT Stage 2 UEL E85 \| Tomei UEL Headers \| Catless FP \| Greddy Revolution RS Catback \| HKS Air Filter \| Toyota Badge Swap

09-24-2017, 09:41 PM	#4
phrosty Senior Member Join Date: Apr 2013 Drives: 2013 FR-S Location: Seattle Posts: 806 Thanks: 202 Thanked 321 Times in 199 Posts Mentioned: 18 Post(s) Tagged: 1 Thread(s)	Everyone is different of course but I've found my combination of OFH + stock OP/FP + P&L catback is a real winner in sound level. The P&L catback is just slightly louder than stock, and combined with catless header it is loud enough to get noticed when cruising but not close to approaching obnoxious unless I want it to be. So, I guess I'd suggest going to stock FP and getting an aftermarket catback if you want it louder than that. Having at least one cat really helps smooth the sound out. __________________ 2013 Whiteout 6AT FR-S \| Perrin Inlet Tube + 2.75" CAI \| OpenFlash Header \| P&L Catback \| 4.88 Final Drive \| Dialed in OFT 2.0x Stage 2 E85 \| 18x8 Enkei Raijin + 225/40 Michelin Pilot Super Sport \| 17x7 Stock + 215/45 Michelin X-Ice Xi-2

09-24-2017, 11:32 PM	#7
Simmons Senior Member Join Date: Jun 2012 Drives: 2024 GR86/ 2015 FRS Location: PA Posts: 961 Thanks: 306 Thanked 575 Times in 269 Posts Mentioned: 17 Post(s) Tagged: 0 Thread(s)	Right now I have a HKS EL, nameless over/front with HFC and stock cat back. It is quiet, but raspy. I have a Perrin 2.5 cat-back non res going on this week. Simmons __________________ 2024 GR86 71 STR/ 2015 FRS 71 STX Sponsors Xero-Limit//Karcepts

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guybo Huge E85 fan! Join Date: May 2016 Drives: 2016 Scion FRS Location: Tampa, FL, USA Posts: 1,850 Thanks: 539 Thanked 1,010 Times in 605 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	the catless FP with no resonator is the problem. Resonators change the tone and filter out rasp. You could punch out the second cat and put the OEM FP back in place. You could go to a muffler shop and have them weld in a resonator into the Megan FP, or something into the midpipe

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