Cam'ed LS owners- Help with Quiet Exhaust search - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

was619 · 12-04-2012, 03:05 AM

Hey All,

I have OBX LT and HF cats, with the Stainless Works Retro Chambered 3 inch catback (factory size hook up)
I have a good bit of drone at highway speeds and have been looking at other options to lower the volume out back before doing a cam instal this spring.

So any suggestions from those of you that have heads/cams ect (pushing more air through) would be greatly appreciated on what would be a better/quieter option.
I have been considering borla, corsa ect.... but it seems that many of these get much much louder after the addition of a cam.

maybe dynomax...?

Thank you in advance!

also lets try to avoid the "louder the better" type comments please

IPT · 12-04-2012, 03:25 AM

I have no real world experience. However, both my last camaros were loud and I am not looking to do that again. This time around when I put the headers on I plan on going with the Magnaflow Street system. I've read it's a bit tame but wakes up nicely with headers. I would imagine with a cam too it'd sound mean, but not overhwelming.

Russell James · 12-04-2012, 08:45 AM

Factory LS3 catback, paint the cans black. Or, Magnaflow street.

Corsa or the factory system won't drone, but the Corsa is loud.

The 2010 Sin · 12-04-2012, 08:54 AM

I'm honestly trying to find those answers also. The magnaflow street quiets it down but still drones pretty bad on highway and sounds like a poppy glasspack under WOT.. I hated it and went back to my louder system until I found an answer. I wonder if anyone has good video of what the factory catback sounds like with an H/C setup.. Id be interested in putting mine back together ( i had originally done a muffler delete.) add some bigger tips paint the cans black and go from there.

DarkCry956 · 12-04-2012, 08:58 AM

My Corsa is quiet at idle and cruising speeds with no drone but LOUD at WOT.

BigMatt · 12-04-2012, 09:43 AM

Corsa!

VADER SS L99 · 12-04-2012, 09:52 AM

Quote:

Originally Posted by The 2010 Sin

I'm honestly trying to find those answers also. The magnaflow street quiets it down but still drones pretty bad on highway and sounds like a poppy glasspack under WOT.. I hated it and went back to my louder system until I found an answer. I wonder if anyone has good video of what the factory catback sounds like with an H/C setup.. Id be interested in putting mine back together ( i had originally done a muffler delete.) add some bigger tips paint the cans black and go from there.

My Magnaflow street does not do this at all. Are you sure you had the 3 muffler system?

VADER SS L99 · 12-04-2012, 10:11 AM

To the OP. I have LT's with cats, cam/heads, and the Magnaflow street and it is very quiet considering the mods. My car gets mistaken for a stock SS all the time and I love it that way. Sounds like a stock car with a mild axle back at idle. Turns into a complete beast under WOT. The combo should be sold together and named Jeckle and Hyde. It has slight drone at highway cruising but you have to turn the radio all the way off to hear it and it didnt do that until after the cam. You cant use the stock catback because the cam will destroy it. Only other catback that I can think of that you might look into is the Dynomax VT but I always worried about the valves not working. Corsa is not going to drone but it will be loud. Even the L99 Corsa system will be louder than the Magnaflow street. I honestly cant think of a quieter system.

TRIPWIRE · 12-04-2012, 11:47 AM

i have corsa with lts cats and a cam and its loud as **** i wouldnt recommend it if your looking for quiet

SPCBA · 12-04-2012, 11:54 AM

Being loud and having drone are two different things to tackle. A J-pipe can kill your drone. Only a quieter exhaust can change the volume. A quieter exhaust does not exactly transfer to no drone.

Birm · 12-04-2012, 12:02 PM

Go back to a 2.5" exhaust or get the Dynomax VT! I had it with my LTs and Cammed car and it was too quiet for me, here is an idle video:
http://www.camaro5.com/forums/showthread.php?t=221083

TXM62SS · 12-04-2012, 12:50 PM

Borla Touring is pretty tame at idle. I currently have it with LTs and Cats. Will be doing a cam swap in March.

The 2010 Sin · 12-05-2012, 06:53 PM

Quote:

Originally Posted by VADER SS L99

My Magnaflow street does not do this at all. Are you sure you had the 3 muffler system?

Yes I've owned the Magnaflow street 3 muffler catback and the competition one center muffler catback. as well as the Flowmaster American Thunder catback which I currently have on the vehicle until I get something else.

The 2010 Sin · 12-05-2012, 06:57 PM

I think I'm going to try and twist my local ZL1 guys arms for their factory catback when they upgrade and go to a quad tip setup

12-04-2012, 03:05 AM	#1
was619 Billy The Kid Drives: Cyber Grey 2SS/RS Join Date: Jun 2009 Location: North Alabama Posts: 637	Cam'ed LS owners- Help with Quiet Exhaust search Hey All, I have OBX LT and HF cats, with the Stainless Works Retro Chambered 3 inch catback (factory size hook up) I have a good bit of drone at highway speeds and have been looking at other options to lower the volume out back before doing a cam instal this spring. So any suggestions from those of you that have heads/cams ect (pushing more air through) would be greatly appreciated on what would be a better/quieter option. I have been considering borla, corsa ect.... but it seems that many of these get much much louder after the addition of a cam. maybe dynomax...? Thank you in advance! also lets try to avoid the "louder the better" type comments please __________________ CGM 2SS/RS[SIZE="1"] Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension, MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels

12-04-2012, 08:54 AM	#4
The 2010 Sin Dont H8 Me Cuz U Aint Me Drives: 2016 SS Sedan, 2017 Explorer Sport Join Date: Feb 2010 Location: Tulsa, Oklahoma Posts: 2,910	I'm honestly trying to find those answers also. The magnaflow street quiets it down but still drones pretty bad on highway and sounds like a poppy glasspack under WOT.. I hated it and went back to my louder system until I found an answer. I wonder if anyone has good video of what the factory catback sounds like with an H/C setup.. Id be interested in putting mine back together ( i had originally done a muffler delete.) add some bigger tips paint the cans black and go from there. __________________

12-04-2012, 09:43 AM	#6
BigMatt 2010 Camaro 2 SS/RS M6 Drives: 2010 Camaro SS/RS Join Date: May 2009 Location: Clayton Delaware Posts: 1,218 View My Garage	Corsa! __________________ Forged LS3, FED M311 heads, CAI Inc, ARH 1 7/8, Corsa Xtreme, Taylor Wires, MGW Shifter, Street slayer twin carbon clutch, Tick braided clutch line & speed bleeder, ZL1 Diff Swap, BMR Split drop, Sway Bars, Trailing Arms, Toe Rods, Pro bushing kit, Carslyle racing 15in conversion, Whipple, LPE dual fuel pumps, Rx catch can, Id1300x, Alky Control

12-04-2012, 10:11 AM	#8
VADER SS L99 Drives: 2013 A6 GT 5.0 Join Date: Nov 2009 Location: Edmond, OK Posts: 2,909	To the OP. I have LT's with cats, cam/heads, and the Magnaflow street and it is very quiet considering the mods. My car gets mistaken for a stock SS all the time and I love it that way. Sounds like a stock car with a mild axle back at idle. Turns into a complete beast under WOT. The combo should be sold together and named Jeckle and Hyde. It has slight drone at highway cruising but you have to turn the radio all the way off to hear it and it didnt do that until after the cam. You cant use the stock catback because the cam will destroy it. Only other catback that I can think of that you might look into is the Dynomax VT but I always worried about the valves not working. Corsa is not going to drone but it will be loud. Even the L99 Corsa system will be louder than the Magnaflow street. I honestly cant think of a quieter system. __________________ BLK/BLK 1SS/RS Ordered 11-01-2009 Took delivery 12-22-2009. Heads/cam/converter/bolt ons. SOLD Feb 2015 to fund 6th gen LT1 SS with 8L90E.

12-04-2012, 12:50 PM	#12
TXM62SS Drives: 2012 2SS/RS LS3 Join Date: May 2012 Location: Pearland, TX Posts: 388	Borla Touring is pretty tame at idle. I currently have it with LTs and Cats. Will be doing a cam swap in March. __________________ Victory Red 2012 2SS/RS LS3 Camaro Pat G. Spec Cam from Cam Motion 228/236 .599/.599 112+2LSA Kooks 1-7/8" LTs w/ Cats Roto-Fab, Bo White TB, Borla Touring Catback 3.91 1LE Gears, MGW Tuned by Pat G

12-04-2012, 03:25 AM	#2
IPT Drives: '02 Trailblazer, '12 Camaro 2SS/RS Join Date: Jun 2012 Location: AK Posts: 819	I have no real world experience. However, both my last camaros were loud and I am not looking to do that again. This time around when I put the headers on I plan on going with the Magnaflow Street system. I've read it's a bit tame but wakes up nicely with headers. I would imagine with a cam too it'd sound mean, but not overhwelming.

12-04-2012, 08:45 AM	#3
Russell James Drives: '15 SS 1LE, '69 Z28 drag car Join Date: Dec 2009 Location: Mich Posts: 4,482	Factory LS3 catback, paint the cans black. Or, Magnaflow street. Corsa or the factory system won't drone, but the Corsa is loud.

12-04-2012, 08:58 AM	#5
DarkCry956 Drives: 2011 Camaro 2SS/RS Join Date: Oct 2011 Location: Texas RGV Posts: 794	My Corsa is quiet at idle and cruising speeds with no drone but LOUD at WOT.

12-04-2012, 11:47 AM	#9
TRIPWIRE Chillin Like a Villain Drives: 2013 2SS Blue Ray Metallic Dusk Ed. Join Date: Apr 2011 Location: Clarksburg,MD Posts: 551 View My Garage	i have corsa with lts cats and a cam and its loud as **** i wouldnt recommend it if your looking for quiet

12-04-2012, 11:54 AM	#10
SPCBA Drives: pleather and Chiclets Join Date: Mar 2012 Location: a line somwhere Posts: 4,206 View My Garage	Being loud and having drone are two different things to tackle. A J-pipe can kill your drone. Only a quieter exhaust can change the volume. A quieter exhaust does not exactly transfer to no drone.

12-04-2012, 12:02 PM	#11
Birm Drives: Florida Speed & Power Join Date: Jan 2011 Location: Pinellas Park, FL Posts: 3,185	Go back to a 2.5" exhaust or get the Dynomax VT! I had it with my LTs and Cammed car and it was too quiet for me, here is an idle video: http://www.camaro5.com/forums/showthread.php?t=221083

12-05-2012, 06:57 PM	#14
The 2010 Sin Dont H8 Me Cuz U Aint Me Drives: 2016 SS Sedan, 2017 Explorer Sport Join Date: Feb 2010 Location: Tulsa, Oklahoma Posts: 2,910	I think I'm going to try and twist my local ZL1 guys arms for their factory catback when they upgrade and go to a quad tip setup __________________