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

shdobxr · 01-16-2016, 02:44 PM

So I have the Ptuning header but there is a sound that I suspect is coming from a specific heat shield coming from the midpipe that joins to the overpipe.

I have a video of the noise, but was wondering if anyone has taken that part off with any bad effects?

I will upload a video of the noise in just a sec. The noise seems to go away when the engine/exhaust is warmer.

_gt86_user · 01-16-2016, 03:38 PM

It's prolly not the heat shield if it's a feint metallic rattle at mid rpm under load then it's normal.

shdobxr · 01-16-2016, 06:09 PM

I thought it was normal too, would that rattle be the 2nd cat?

shdobxr · 01-29-2016, 09:31 AM

So what exactly is that noise coming from? Just curious before I go digging around under the car.

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86 South Africa · 01-29-2016, 10:50 AM

I had a loose bash plate from hitting a rock.
Could be similar... Thought it was an exhaust issue, but luckily just the plate... Tightened up and all good now.

Cole · 01-29-2016, 11:26 AM

I also had an annoying rattle. Thought it was my heat shield coming loose. Turned out it was my O2 sensors were loose. I'd check those too.

rjgough95 · 01-29-2016, 02:07 PM

Ive had the same rattle for awhile now and i was thinking it had something to do with my exhaust system and the flex joints possibly. I have the uel Borla headers that have two flex joints. Then i have the HKS dual resonator front pipe and Perrin cat back non resonated exhaust which has one flex joint at the connection to the front pipe.

rosol16 · 01-29-2016, 02:09 PM

Wait isn't your exhaust suppose to make noise?

shdobxr · 02-01-2016, 08:49 AM

I took video of it. I can post it soon. Need to make sure the sound is ok. I'm pretty sure it isnt the skid plate. But more of that heat shield touching something making that noise. I triple checked the o2s when I installed cause once it's in. It's in there.

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shdobxr · 02-07-2016, 11:54 AM

Here is the video. https://s3.amazonaws.com/shdo-pics/v...aust_noise.mov

shdobxr · 02-08-2016, 07:52 AM

I'll link this to YouTube. Just for kicks.

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shdobxr · 02-09-2016, 08:54 AM

[ame="https://www.youtube.com/watch?v=rxc2e-QNGPA"]exhaust noise brz - YouTube[/ame]

Docmattic · 02-09-2016, 06:47 PM

Quote:

Originally Posted by shdobxr

That would drive me nuts! Sorry don't know what it is though.

jawn · 02-09-2016, 06:49 PM

Could be the heat shield on the overpipe touching the frame. It's a little more likely than the front pipe touching something.

01-16-2016, 02:44 PM	#1
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Exhaust noise So I have the Ptuning header but there is a sound that I suspect is coming from a specific heat shield coming from the midpipe that joins to the overpipe. I have a video of the noise, but was wondering if anyone has taken that part off with any bad effects? I will upload a video of the noise in just a sec. The noise seems to go away when the engine/exhaust is warmer.

02-01-2016, 08:49 AM	#9
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Exhaust noise I took video of it. I can post it soon. Need to make sure the sound is ok. I'm pretty sure it isnt the skid plate. But more of that heat shield touching something making that noise. I triple checked the o2s when I installed cause once it's in. It's in there. Sent from my iPhone using Tapatalk

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01-16-2016, 03:38 PM	#2
_gt86_user Inactive Join Date: Mar 2015 Drives: . Location: . Posts: 289 Thanks: 40 Thanked 84 Times in 65 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	It's prolly not the heat shield if it's a feint metallic rattle at mid rpm under load then it's normal.

01-16-2016, 06:09 PM	#3
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I thought it was normal too, would that rattle be the 2nd cat?

01-29-2016, 09:31 AM	#4
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	So what exactly is that noise coming from? Just curious before I go digging around under the car. Sent from my iPhone using Tapatalk

01-29-2016, 11:26 AM	#6
Cole Not a troll Join Date: Apr 2015 Drives: FR-S Location: Canada Posts: 5,104 Thanks: 8,237 Thanked 5,399 Times in 2,694 Posts Mentioned: 266 Post(s) Tagged: 4 Thread(s)	I also had an annoying rattle. Thought it was my heat shield coming loose. Turned out it was my O2 sensors were loose. I'd check those too.

01-29-2016, 02:07 PM	#7
rjgough95 Member Join Date: Oct 2014 Drives: 13 Subaru BRZ, 02 7.3 F350 Diesel Location: virginia fauquier Posts: 87 Thanks: 19 Thanked 13 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 2 Thread(s)	Ive had the same rattle for awhile now and i was thinking it had something to do with my exhaust system and the flex joints possibly. I have the uel Borla headers that have two flex joints. Then i have the HKS dual resonator front pipe and Perrin cat back non resonated exhaust which has one flex joint at the connection to the front pipe.

01-29-2016, 02:09 PM	#8
rosol16 Not A Member Join Date: Nov 2015 Drives: 2014 Mustang GT Location: Dyess AFB Posts: 176 Thanks: 72 Thanked 41 Times in 27 Posts Mentioned: 1 Post(s) Tagged: 2 Thread(s)	Wait isn't your exhaust suppose to make noise?

02-07-2016, 11:54 AM	#10
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Here is the video. https://s3.amazonaws.com/shdo-pics/v...aust_noise.mov

02-08-2016, 07:52 AM	#11
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I'll link this to YouTube. Just for kicks. Sent from my iPhone using Tapatalk

02-09-2016, 08:54 AM	#12
shdobxr Senior Member Join Date: Sep 2015 Drives: 2015 Location: NOVA Posts: 150 Thanks: 38 Thanked 16 Times in 13 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	[ame="https://www.youtube.com/watch?v=rxc2e-QNGPA"]exhaust noise brz - YouTube[/ame]

02-09-2016, 06:49 PM	#14
jawn Senior Member Join Date: Jun 2015 Drives: 2015 CWP BRZ Limited Location: NOVA Posts: 2,800 Thanks: 1,801 Thanked 3,946 Times in 1,757 Posts Mentioned: 105 Post(s) Tagged: 7 Thread(s)	Could be the heat shield on the overpipe touching the frame. It's a little more likely than the front pipe touching something.

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