Which aftermarket axle back exhaust, drone - ModernCamaro.com - 5th Generation Camaro Enthusiasts
V8 Engine Discussion 6.2L LS3/L99 V8 | Exhaust | Ignition | Induction | Intakes

 
LinkBack Thread Tools
post #1 of 8 Old 08-24-2015, 08:41 PM Thread Starter
Newbie
 
Join Date: Jan 2015
Location: Virginia
Posts: 8
 
Cool Which aftermarket axle back exhaust, drone

Hi all ..
I know lots of threads on this topic, but can't seem to find the answer, so I thought I'd ask .. sorry if this is a dup ...

2013, SS, auto, mostly stock, rally yellow, convertible with stock ground effects

I cut off stock mufflers 3" behind the mufflers and installed MRT GFX to get better muscle car sound.

On startup, they sound great, exactly the type of deeper sounds I wanted.
However, when driving, I am getting very bad drone ... at least I think it's drone. Most always around 1600 rpm in higher gear. As you pass through 1600 (or so) rpms, you get Bummmmmm, then switches to Grrrrrrrrrrrr, then back to Bummmmmmmm (sorry for the bad description), but horribly annoying ... really sounds as though there is a flap in the exhaust flapping at that rpm changing the sound ... is that drone?

Is this something to do with the solonoid flap in the exhaust, that shows itself only with after market exhaust? should I take out the fuse to disable, and see if this is related?

Just for kicks, I took off both new MRT axle back mufflers and drove without, and I get the exact same annoying noise ...

So, this seems to tell me that this droning sound isn't produced by the aftermarket mufflers, but instead isn't cancelled out by the aftermarket mufflers .... So this drone is produced by the car, not the muffler ...

So what now? MRT won't let me return these mufflers ... $475 down the drain ... uggggh ...... have a J-pipe welded on? not sure where to go for that?

I heard another 5gen camaro today with Pypes axle back with no drone ... are some aftermarket muffer kits designed to cancel drone?

Not sure which way to go with this puzzle I have created ...
Any thoughts or advise?

thanks much!!
[email protected]
Sponsored Links
Advertisement
 
post #2 of 8 Old 08-25-2015, 02:53 PM
Member
 
Join Date: Jul 2013
Posts: 166
 
The only company that guarantees a no drone design is Corsa You may get lucky with other systems.
No gambling involved with the Corsa
We sell a system that fits o.e. ground effects along with it being a automatic and convertible
everything you want in one package.
Livernois Motorsports is offline  
post #3 of 8 Old 08-25-2015, 08:09 PM
Member
 
CRF8's Avatar
 
Join Date: Jan 2014
Location: Tennessee
Posts: 102
 
Garage
may be the 8 cylinder cutting back to the 4 cylinder mode. Get a range device or a tune. I have very slight drone @ that rpm with my Garnatelli axleback. Everyone has their own definition and tolerance level for this issue.


CRF8 FLORIDA 2014 Camaro 2SS/ RS red rock metallic L99; named "Waste of Money" by the wife; 93 tune, front strut brace, window tint, Lloyd's trunk mat, cargo net & organizer, LED blue dome & trunk, ESCORT, BMC fade gills, RotoFab CAI, Granatelli axle back, Gorilla wheel locks, Expel headlight protectors, Vmax throttle-body.
http://spacecoastcamaros.com/scc/index.php
CRF8 is offline  
 
post #4 of 8 Old 08-26-2015, 06:15 AM
Junior Member
 
Rainbow1616's Avatar
 
Join Date: Jun 2014
Location: Pittsburgh, PA
Posts: 54
 
Solo Mach XL cat back. Great sound with absolutely No Drone.
Rainbow1616 is offline  
post #5 of 8 Old 08-26-2015, 08:29 AM
Premium Member
 
JWD621's Avatar
 
Join Date: Apr 2010
Location: Hurst, Texas
Posts: 4,354
 
Garage
Quote:
Originally Posted by CRF8 View Post
may be the 8 cylinder cutting back to the 4 cylinder mode. Get a range device or a tune. I have very slight drone @ that rpm with my Garnatelli axleback. Everyone has their own definition and tolerance level for this issue.
This is exactly what is on mine with the Range AFM killer, love everything about it. No drone and even get the pop, pop ,pop I like when I decelerate.


2010 2SS/RS A6 L99 Born 09/16/2009 Vin#9146985
ModernCamaro Car of the Month Jan 2013
CAI,Axle back exhaust, V Max Throttle Body
JWD621 is offline  
post #6 of 8 Old 09-09-2015, 08:47 PM Thread Starter
Newbie
 
Join Date: Jan 2015
Location: Virginia
Posts: 8
 
any way to adjust or cancel the car going into 4-cylinder mode?
is that a user-adjustable feature or the car does it and not user adjustable?
thanks.
[email protected].com
post #7 of 8 Old 09-10-2015, 01:43 PM
Member
 
CRF8's Avatar
 
Join Date: Jan 2014
Location: Tennessee
Posts: 102
 
Garage
have to buy a range device or get a tune or tune device


CRF8 FLORIDA 2014 Camaro 2SS/ RS red rock metallic L99; named "Waste of Money" by the wife; 93 tune, front strut brace, window tint, Lloyd's trunk mat, cargo net & organizer, LED blue dome & trunk, ESCORT, BMC fade gills, RotoFab CAI, Granatelli axle back, Gorilla wheel locks, Expel headlight protectors, Vmax throttle-body.
http://spacecoastcamaros.com/scc/index.php
CRF8 is offline  
post #8 of 8 Old 10-28-2015, 06:18 PM
Newbie
 
pyroguy's Avatar
 
Join Date: Oct 2015
Posts: 8
 
Quote:
Originally Posted by Livernois Motorsports View Post
The only company that guarantees a no drone design is Corsa You may get lucky with other systems.
No gambling involved with the Corsa
We sell a system that fits o.e. ground effects along with it being a automatic and convertible
everything you want in one package.
Quote:
Originally Posted by Rainbow1616 View Post
Solo Mach XL cat back. Great sound with absolutely No Drone.
Corsa AND Solo are both guaranteed drone free. Solo Mach XL catback is what I have and it sounds great with or without headers. It is amazing the drone difference between it and a drone heavy car (which mine was because of some cheap mufflers the previous owner welded on). Solo sounds almost stock cruising around, but when you get on it the car gets loud. Add headers and the car can get ridiculous while being awesome!

'10 Camaro 2SS/RS | Aqua Blue #823 of 3903 | Silver Stripes

pyroguy is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the ModernCamaro.com - 5th Generation Camaro Enthusiasts forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome