So frustrated - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Luis19SS · 11-11-2015, 11:31 PM

I installed my new exhaust tips today and they look fantastic. The only thing that has bothered me for about 3 months now is when I remote start my car from the back, I can hear a flutter/buzzing sound coming out through the exhuast tips. Ever since I removed the secondary cats I got this sound. I really dont want to add them back because I love how it sounds inside. When Heard from outside tho, the exhaust makes this buzzing/flutter sound around 1800-3000 rpm. I dont know if it makes it through out the RPM range becuase my mom doesnt really like to drive over 3000 rpm when I ask her to drive it. Anyways, At idle I also hear like a ticking sound but usually goes away when warm, but when I turn on the air conditioning it comes back. I tried getting videos but the video doesnt pick it up. I have the maganflow resonated x pipe with muffler, resonator and rear cat delete so im not sure what can be causing this. Ive taken it many times to make sure I have no leaks and I dont. This is the reason I want to purchase the MRT 1 but im not sure if the sound will go away. Help me

sixtyseven · 11-12-2015, 10:41 PM

Quote:

Originally Posted by Luis13RS

I installed my new exhaust tips today and they look fantastic. The only thing that has bothered me for about 3 months now is when I remote start my car from the back, I can hear a flutter/buzzing sound coming out through the exhuast tips. Ever since removed the secondary cats I got this sound. I I really dont want to add them back because I love how it sounds inside. When Heard from outside tho, the exhaust makes this buzzing/flutter sound around 1800-3000 rpm. I dont know if it makes it through out the RPM range becuase my mom doesnt really like to drive over 3000 rpm when I ask her to drive it. Anyways, At idle I also hear like a ticking sound but usually goes away when warm, but when I turn on the air conditioning it comes back. I tried getting videos but the video doesnt pick it up. I have the maganflow resonated x pipe with muffler, resonator and rear cat delete so im not sure what can be causing this. Ive taken it many times to make sure I have no leaks and I dont. This is the reason I want to purchase the MRT 1 but im not sure if the sound will go away. Help me

Sounds like a good reason to buy and install some solo high flow cats.

chasmanian · 11-13-2015, 05:32 AM

Is it vibrating against anything? Check along the entire exhaust with it cold, of course. Look for anything close enough to tap against. Check your hangers, too.

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IneedAZ · 11-13-2015, 06:46 AM

Perhaps the issue can be eliminated by installing the Solo Jpipes. It is tunable to remove noises in that rpm range. That preserves the muffler delete sound you are after.

chasmanian · 11-13-2015, 07:01 AM

The fact that it goes away when warm points to something that doesn't fit right when cold, but eases when hot. I know you've had one guy check for a leak. Take it to another. And look for the things I mentioned above.

Sent from my SM-P600 using Tapatalk

Luis19SS · 11-13-2015, 02:23 PM

Alright thanks guy. Ive looked at the hangers and they are good, Ill take it to another shop to get there opinion. I pulled the trigger for the MRT 1, if the sound does not get solved, I will invest on some solo high flow cats or J pipes. Maybe Ill buy them together. Lets see what happens.

dmginc · 11-13-2015, 03:08 PM

for what you are describing i doubt j-pipes would do anything for that. can you take a video of this fluttering noise you are talking about?

IneedAZ · 11-13-2015, 03:10 PM

Sure its not vibrating against the heat shields? I get that when i turn the AC on sometimes. Also check the heat shield around the starter.

Luis19SS · 11-13-2015, 06:13 PM

I'll try to get a video as soon as I can, hopefully I can figure out what the problem is. My friend is going to help me Sunday and see what he thinks. We will lift the car up and see if its not hitting against anything.

Luis19SS · 11-13-2015, 06:25 PM

https://youtu.be/rJgzMyt93A4 Do anyone of you here that bee like sound when it starts?

Luis19SS · 11-13-2015, 06:40 PM

http://youtu.be/47oLVCORt0k See how in the beginning you can here that bzzzzzzz sound then it changes and goes away to a normal sound?

Luis19SS · 11-13-2015, 06:43 PM

http://youtu.be/pVxiMItGbD4 I trimmed the video where you can here the flutter/bzzzz sound.... I asked my mom to go up to 3k rpm to pinpoint where the sound is made at the rpm range and it seems to be between 1000-2000, which I thought was between 2k-3k. That would explain why I hear the zzzzzzzzz sound on cold start and warm start.

Luis19SS · 11-13-2015, 06:59 PM

I'm glad I'm not the only one, hopefully they do. If they don't, then I'll add back the rear cats.

Luis19SS · 11-13-2015, 07:20 PM

I guess that's the only con in removing the rear or both cats.. Hopefully the MRTs do there job.

11-11-2015, 11:31 PM	#1
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	So frustrated I installed my new exhaust tips today and they look fantastic. The only thing that has bothered me for about 3 months now is when I remote start my car from the back, I can hear a flutter/buzzing sound coming out through the exhuast tips. Ever since I removed the secondary cats I got this sound. I really dont want to add them back because I love how it sounds inside. When Heard from outside tho, the exhaust makes this buzzing/flutter sound around 1800-3000 rpm. I dont know if it makes it through out the RPM range becuase my mom doesnt really like to drive over 3000 rpm when I ask her to drive it. Anyways, At idle I also hear like a ticking sound but usually goes away when warm, but when I turn on the air conditioning it comes back. I tried getting videos but the video doesnt pick it up. I have the maganflow resonated x pipe with muffler, resonator and rear cat delete so im not sure what can be causing this. Ive taken it many times to make sure I have no leaks and I dont. This is the reason I want to purchase the MRT 1 but im not sure if the sound will go away. Help me __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 06:46 AM	#4
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,111 View My Garage	Perhaps the issue can be eliminated by installing the Solo Jpipes. It is tunable to remove noises in that rpm range. That preserves the muffler delete sound you are after. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

11-13-2015, 02:23 PM	#6
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	Alright thanks guy. Ive looked at the hangers and they are good, Ill take it to another shop to get there opinion. I pulled the trigger for the MRT 1, if the sound does not get solved, I will invest on some solo high flow cats or J pipes. Maybe Ill buy them together. Lets see what happens. __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 03:08 PM	#7
dmginc Drives: In Circles Join Date: Mar 2011 Location: South Carolina Posts: 3,433 View My Garage	for what you are describing i doubt j-pipes would do anything for that. can you take a video of this fluttering noise you are talking about? __________________ CAI Cold Air Intake, BMR Strut Tower Brace, BMR 1.2" Lowering Springs Gen5DIY Fog Lights, Big Worm Third Brake Light/Side Marker Tint (Charcoal) GTS Tail Light Covers, Purple Under Hood Lighting Magnaflow Resonated X-Pipe w/ Muffler Delete Black Plasti Dipped Wheels, Z/28 Spoiler

11-13-2015, 03:10 PM	#8
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,111 View My Garage	Sure its not vibrating against the heat shields? I get that when i turn the AC on sometimes. Also check the heat shield around the starter. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

11-13-2015, 05:32 AM	#3
chasmanian Drives: 2015 Camaro SS Join Date: Dec 2013 Location: Easton, PA Posts: 295 View My Garage	Is it vibrating against anything? Check along the entire exhaust with it cold, of course. Look for anything close enough to tap against. Check your hangers, too. Sent from my SM-P600 using Tapatalk

11-13-2015, 07:01 AM	#5
chasmanian Drives: 2015 Camaro SS Join Date: Dec 2013 Location: Easton, PA Posts: 295 View My Garage	The fact that it goes away when warm points to something that doesn't fit right when cold, but eases when hot. I know you've had one guy check for a leak. Take it to another. And look for the things I mentioned above. Sent from my SM-P600 using Tapatalk

11-13-2015, 06:13 PM	#9
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	I'll try to get a video as soon as I can, hopefully I can figure out what the problem is. My friend is going to help me Sunday and see what he thinks. We will lift the car up and see if its not hitting against anything. __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 06:25 PM	#10
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	https://youtu.be/rJgzMyt93A4 Do anyone of you here that bee like sound when it starts? __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 06:40 PM	#11
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	http://youtu.be/47oLVCORt0k See how in the beginning you can here that bzzzzzzz sound then it changes and goes away to a normal sound? __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 06:43 PM	#12
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	http://youtu.be/pVxiMItGbD4 I trimmed the video where you can here the flutter/bzzzz sound.... I asked my mom to go up to 3k rpm to pinpoint where the sound is made at the rpm range and it seems to be between 1000-2000, which I thought was between 2k-3k. That would explain why I hear the zzzzzzzzz sound on cold start and warm start. __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 06:59 PM	#13
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	I'm glad I'm not the only one, hopefully they do. If they don't, then I'll add back the rear cats. __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers

11-13-2015, 07:20 PM	#14
Luis19SS Drives: 2019 SS A10 Join Date: Mar 2015 Location: Arizona Posts: 487	I guess that's the only con in removing the rear or both cats.. Hopefully the MRTs do there job. __________________ Black 2019 SS A10, MBRP Exhuast, Soler performance Ported Throttlebody, Cold Air Inductions CAI, BMR equipped, Stance SFO7 on nitto NT555G2 tires, Limited Edition White Racing Seats, ZL1 1LE Splitter, Carbon Sideskirts, Gorilla Splitters areo kit, Next Gen Speed Diffuser, JWmotorsports LED side markers