muffler Delete ZL1 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

king II zl1 · 08-13-2018, 04:06 PM

Hi guys, was looking to do a muffler delete on my 2013 zl1 but am afraid if i ever wanted to weld on the Original NPP exhaust mufflers the butterfly flaps wouldn't work like they are supposed to, (i would get different tips so the mufflers would be one whole piece). Anyone try this or would have any info let me know! thanks.

GONMAD510 · 08-13-2018, 05:49 PM

Better off just pulling the fuse F8 in the trunk so the bypass stays open all the time. That way you can put the fuse back in and they will work normally.

king II zl1 · 08-13-2018, 05:58 PM

I did pull the fuse, just want it a bit louder

DSX_Camaro · 08-15-2018, 09:45 AM

Do you have the stock H pipe or an X pipe? Stock cats? Headers? It would be easy to remove the rear cats and install a regular X pipe in place of the H for more volume. Dunno if you have to tune the Z at that point though.

GONMAD510 · 08-15-2018, 09:48 AM

I am running a set of Noweeds cutout diverters. If you want loud that will do it. When you want quiet you can just hit the button and close them. I am running them with no cats and a set of long tube headers. I don't think it gets any louder.

king II zl1 · 08-15-2018, 12:35 PM

I cant touch the cats or tune anything because it will void my warranty, waiting until warranty expires to do LT headers, tune, and different pulleys. But for now I just want the car as loud as i can make it without voiding any warranty. The car is 100% bone stock from the factory. Was just wondering if anyone had done a muffler delete on a 5th gen zl1 to see how it sounded and if the butterfly flaps still work if i were to weld the mufflers back on.

RobZL1 · 08-15-2018, 03:29 PM

If you've pulled the fuse, you've basically got straight pipes already. I don't think you can get any louder until you do headers, and then it will be loud af!

SecondZ28 · 08-28-2018, 06:44 AM

Quote:

Originally Posted by king II zl1

I cant touch the cats or tune anything because it will void my warranty,

You have a 2013...bumper to bumper was 3 years and Powertrain was 5 years..

Did you purchase an extended warranty?

king II zl1 · 08-31-2018, 03:58 PM

Yes i did purchase an extended warranty, but for the 2012-2013 years the supercharger was extended under warranty to 10 years or 120k miles if im not mistaken (due to a faulty bearing within the supercharger). I was just looking to see if a muffler delete would make it any louder or not really haha thats all

08-13-2018, 04:06 PM	#1
king II zl1 Drives: 2013 zl1 camaro Join Date: Apr 2018 Location: Arizona,USA Posts: 6	muffler Delete ZL1 Hi guys, was looking to do a muffler delete on my 2013 zl1 but am afraid if i ever wanted to weld on the Original NPP exhaust mufflers the butterfly flaps wouldn't work like they are supposed to, (i would get different tips so the mufflers would be one whole piece). Anyone try this or would have any info let me know! thanks.

08-13-2018, 05:49 PM	#2
GONMAD510 Drives: 2013 ZL1 M6 Join Date: Sep 2016 Location: CA Bay Area Posts: 248	Better off just pulling the fuse F8 in the trunk so the bypass stays open all the time. That way you can put the fuse back in and they will work normally. __________________ Fast 850cc Injectors, ATI Balancer, 8.66 Lower Pulley, 2.55 Upper Pulley, Lingenfelter CAI, Kooks LT with cat delete pipes, Noweeds Exhaust Cutouts (extremely loud under full throttle), BTR Stage 3 Cam, BTR Platinum 660 Valve Spring Kit, TR7ix Iridium Spark Plugs, Lingenfelter Solid Isolator, 160 Degree Thermostat, Larger SC Coolant Reservoir with Hose Relocation Kit, BMR 1.25" Lowering Springs, MGW Short Throw Shifter, Racing Brake 2 piece rotors front and rear, Starkweather Performance Custom Dyno Tune on 91 Octane. 691.38 RWHP 630.35 RWTQ

08-15-2018, 09:45 AM	#4
DSX_Camaro Drives: 2013 SW 2LT/RS LFX/AY6 Join Date: Feb 2013 Location: Orlando, FL Posts: 1,741	Do you have the stock H pipe or an X pipe? Stock cats? Headers? It would be easy to remove the rear cats and install a regular X pipe in place of the H for more volume. Dunno if you have to tune the Z at that point though. __________________ K&N CAI, 1LE Strut Tower Brace, Elite Engineering Catch Can and Clean Side Separator, Apex Scoop w/ Washer Relocation Kit, CTS Front Calipers and Rotors, JacFab Ported Intake Manifold, JacFab Intake Manifold Spacer, 80mm Overkill Throttle Body, SS Brake Lines, Ideal Garage Master Cylinder, Monster Twin Disc Clutch, NPP Retrofit w/ Magnaflow Resonated X, ARH Catless Downpipes, JRE Built 3.45 Diff, 1LE Axles, 1LE Hubs, Overkill Tuned, BMR Anti Wheel-hop Kit Stage I, ACS TL1 Hood Insert, ZL1 Spoiler

08-15-2018, 09:48 AM	#5
GONMAD510 Drives: 2013 ZL1 M6 Join Date: Sep 2016 Location: CA Bay Area Posts: 248	I am running a set of Noweeds cutout diverters. If you want loud that will do it. When you want quiet you can just hit the button and close them. I am running them with no cats and a set of long tube headers. I don't think it gets any louder. __________________ Fast 850cc Injectors, ATI Balancer, 8.66 Lower Pulley, 2.55 Upper Pulley, Lingenfelter CAI, Kooks LT with cat delete pipes, Noweeds Exhaust Cutouts (extremely loud under full throttle), BTR Stage 3 Cam, BTR Platinum 660 Valve Spring Kit, TR7ix Iridium Spark Plugs, Lingenfelter Solid Isolator, 160 Degree Thermostat, Larger SC Coolant Reservoir with Hose Relocation Kit, BMR 1.25" Lowering Springs, MGW Short Throw Shifter, Racing Brake 2 piece rotors front and rear, Starkweather Performance Custom Dyno Tune on 91 Octane. 691.38 RWHP 630.35 RWTQ

08-15-2018, 03:29 PM	#7
RobZL1 fo'shizZL1 Drives: 2017 ZL1 Join Date: Aug 2017 Location: ATL Posts: 1,281	If you've pulled the fuse, you've basically got straight pipes already. I don't think you can get any louder until you do headers, and then it will be loud af! __________________ 2017 ZL1 M6 Black \| Maggie 2650 // 103TB // Big Gulp Past Rides- 2014 ZL1 M6 Red Hot \| Tons of mods 2004 CTS-V M6 Silver \| Many mods 1995 Corvette M6 Torch Red \| A few more mods 1992 Camaro M5 White \| A few mods

08-13-2018, 05:58 PM	#3
king II zl1 Drives: 2013 zl1 camaro Join Date: Apr 2018 Location: Arizona,USA Posts: 6	I did pull the fuse, just want it a bit louder

08-15-2018, 12:35 PM	#6
king II zl1 Drives: 2013 zl1 camaro Join Date: Apr 2018 Location: Arizona,USA Posts: 6	I cant touch the cats or tune anything because it will void my warranty, waiting until warranty expires to do LT headers, tune, and different pulleys. But for now I just want the car as loud as i can make it without voiding any warranty. The car is 100% bone stock from the factory. Was just wondering if anyone had done a muffler delete on a 5th gen zl1 to see how it sounded and if the butterfly flaps still work if i were to weld the mufflers back on.

08-31-2018, 03:58 PM	#9
king II zl1 Drives: 2013 zl1 camaro Join Date: Apr 2018 Location: Arizona,USA Posts: 6	Yes i did purchase an extended warranty, but for the 2012-2013 years the supercharger was extended under warranty to 10 years or 120k miles if im not mistaken (due to a faulty bearing within the supercharger). I was just looking to see if a muffler delete would make it any louder or not really haha thats all