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11-21-2021, 12:53 PM
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#1 |
 Drives: Camaro ZL1 Join Date: Sep 2021
Location: St.Louis, MO
Posts: 14
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Exhaust ?’s about drone
Hey guys I have a 2013 ZL1, it’s built H/c/Magnuson e85, my current exhaust setup is 2inch American racing headers to catless full 3 inch stainless works. It sounds great and doesn’t drone but it’s really loud and I’d like to quiet it down but don’t want to get drone at all. I was wondering what mufflers you would recommend? I was thinking a bullet style by the tips. I know the Kooks bullets would quiet it down but I was wondering if I would get drone. Thanks for any input.
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11-21-2021, 02:47 PM
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#2 |
  
Drives: 2014 1SS/1LE Join Date: Nov 2015
Location: Louisville, KY
Posts: 826
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I still have the stock NPP mufflers and added bullet style ones upstream in the tunnel to tone it down at idle and part throttle cruise but it still howls at WFO. No drone for me.
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830 WHP 700 WTQ, Whipple 2.9 @ 13lbs Boost, Flex Fuel Tune by Blevins Tuning, LSA SBE, 3.5 GripTec, ATI LS3 Damper, AFR 260cc Mongoose, ARP Studs, Yella Terra Ultralites, Johnson 2110R, BTR PDS Stage 3, Melling 10355, Improved Racing Baffle, ID1050X, DSX Triple Fuel Pump, RotoFab CAI, NW 103mm TB, Stainless Works 1-7/8" LTH to 3" Speed Eng w/ X-pipe to NPP, Powermaster 9509 XS, Detroit Speed Motor Mounts, MGW, Monster LT1-S, ZL1 Calipers, DBA Rotors & Pads, Bilstein B6 Struts & Shocks, BMR 1.25" Drop Springs & Adj Rear Bar, Pegasus Solid Bushings, Z/28 Wheels, other misc parts.
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11-21-2021, 02:57 PM
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#3 |
          
Drives: 2011 SS-RS Join Date: May 2011
Location: FLORIDA
Posts: 11,471
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This might be your best bet to quiet it down with no drone. Only thing about it is it is 2.5 in and out. I had one and it worked great. I was straight piped until I could get a catback on there. The thing about adding mufflers is most of them will give you some drone, unless they are made like the Corsa systems mufflers, which I have their ZL1 sport catback on there now. Loud but quiet cruising and no drone. I even had Magnaflow's behind my quad tips at 1 time, and they didn't get rid of the drone I was not liking anymore. Good luck.
https://www.phastekperformance.com/C...pipe-11386.htm
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TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.
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11-21-2021, 04:55 PM
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#4 | |
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Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Quote:
Hi Flow Cats will quiet it down except for Cold Start and WOT, no drone.. The original ZL1 NPP mufflers are pretty good. |
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11-22-2021, 08:47 AM
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#5 |
 Drives: 2013 ZL1 Join Date: Jan 2020
Location: Virginia
Posts: 55
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Jones makes a dual 3" in/out with an internal x-pipe which will quiet it down.
Or, you can use a set of Vibrant resonators just off the header collector. |
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11-22-2021, 09:25 AM
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#6 |
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Happy_Dan
Drives: 2012 IOM Camaro ZL1 #569 Join Date: Dec 2011
Location: New Boston, NH
Posts: 2,240
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I have ceramic coated headers and high flow cats. The rest is stock exhaust. It is reasonably quiet cruising and very loud at WOT.
No crazy upgrades to power on my car, just pulley, injectors and air box. |
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11-22-2021, 10:46 AM
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#7 | |
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KaBoom1701
Drives: 13' ZL1 Red M6 Join Date: Dec 2012
Location: I.E. SoCal (Yucaipa)
Posts: 8,630
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Quote:
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Mods:
Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats. |
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11-22-2021, 05:08 PM
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#8 | |
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Drives: ZL1, 2013, tri-coat-red, manual Join Date: Nov 2013
Location: Michigan
Posts: 1,607
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Quote:
I actually enjoy that its as quiet as stock and then when I lite it up on a Mopar product the look on their face and when they catch up on the wind down they go, Damm whats in that thing... |
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12-05-2021, 02:44 PM
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#9 |
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Drives: 2013 ZL1 V3RT Join Date: Feb 2012
Location: Tampa FL
Posts: 804
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Love my corsa setup but when I changed to 2 inch headers and no cats it’s loud as hell on Cole start and pops and cracks like crazy changing gears or backing out of the gas.
I was gonnna go with a bullet exhaust cause of their mild to Wild setup but no one would call me back when I called their line. Granted it was during Covid. November 2020
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2010 2SS- White M6 FBO,ZL1 10 spokes powdercoated silver, 3.91 gears- SOLD 2019
2017 Ocean Blue Silverado- 3.5 lift and 33x12.50s 2011 2SS Black M6- Cammed, Blown (MNSSTR) - Sold 2014 |
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12-05-2021, 02:50 PM
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#10 |
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Tri-County Camaro SWFL
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Stock NPP is the best bet.
The only dual mode 3in exhaust that i know of for the 5th gen is the Billy Boat Fusion catback.
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12-06-2021, 12:57 AM
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#11 |
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KaBoom1701
Drives: 13' ZL1 Red M6 Join Date: Dec 2012
Location: I.E. SoCal (Yucaipa)
Posts: 8,630
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I also added this
https://www.normalguysupercar.com/pr...ust-controller Gives me more control over the stock NPP exhaust.
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Mods:
Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats. |
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12-06-2021, 08:41 AM
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#12 |
Drives: 2012 SS L99 Converible Join Date: Mar 2016
Location: New Washington, Ohio
Posts: 606
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Originally I was shorty headers/solo hi-flow cats and Flowmaster 3” with x-pipe. They had tiny resonators. Worked well until I did a cam swap. Drone was horrid. Bought Solo Performance j-pipes for the back. Works awesome. Still decently loud outside with zero drone inside.
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2012 L99 Convertible SS
Tooley Racing Stage 2 DOD delete, 3,200 stall converter, Shorty headers and custom stainless exhaust, CAI, and tune as mods |
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12-06-2021, 08:42 AM
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#13 |
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Drives: 2012 SS L99 Converible Join Date: Mar 2016
Location: New Washington, Ohio
Posts: 606
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2012 L99 Convertible SS
Tooley Racing Stage 2 DOD delete, 3,200 stall converter, Shorty headers and custom stainless exhaust, CAI, and tune as mods |
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12-06-2021, 03:06 PM
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#14 | |
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Drives: ZL1 Join Date: Oct 2012
Location: Talladega
Posts: 631
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The American Racing Header Quad Tip is a mild sounding 3 inch muffler that have very minimum drone at cruising. The link can give you an idea of how they sound on a ZL1 that has 2 inch ARH Headers with 3 inch exhaust all the way to the back, it does have a ARH X pipe no cats.
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