02-21-2018, 09:12 PM | #1 |
618 RWHP
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Corsa Catback Exhaust vs stock
I am looking for a way to make my car more efficient and lower boost presser I am at 14 . I am currently running stock manifold and no cats .
I am going to be running kooks headers , off road pips ( catless ) and stock exhaust . My question is ..Dose anyone know if a Corsa Catback exhaust flows better then the stock ? and in retune give even better air flow ? |
02-21-2018, 10:01 PM | #2 |
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I just responded to a post regarding Corsa. The stock exhaust flows good and I don't think aftermarket will help much. Your biggest gain is from the addition of headers and removing the cats. I have a Corsa catback and my setup is similar to yours. Mine is Loud. I mean really loud. During a cold start it will hurt your ears if you stand behind the car. Brings lots of unwanted attention. Corsa was reasonably quiet until I did the same mods you are proposing. I'm cutting off the Corsa mufflers and installing a Flowmaster Force 2 axle back to try to get rid of some of the noise. Hope this helps and gives you a little more information.
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There's more to life than gas mileage
LS3, Whipple, Custom Comp Cam, springs, pushrods, timing set, CAI intake, Apex cold air scoop, Doug Thorley TRI-Y headers, Billet Custom Products baffled Valve covers, Mighty Mouse Catch can, ADM FPCM, ZL1 fuel pump, MSD boost-a-pump, Hex Vent hood vents, ProSport gauges(fuel pressure, AFR, Boost), Corsa, 100 cell Cats. Jannetty remote tuned, Pfadt trailing arms, all parts user installed. No Dyno yet. Manual trans. 3.45 gears. |
02-21-2018, 10:07 PM | #3 | |
618 RWHP
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02-22-2018, 08:47 AM | #4 |
Drives: 2013 Camaro ZL1 Join Date: Dec 2015
Location: Clayton NJ
Posts: 225
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I had the Corsa on my 2013 ZL1, with kooks. It scared people when I started it up. It was loud...really loud. I traded a guy for the stock NPP..much better. Actually feels a little more responsive. Good luck
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02-22-2018, 10:36 AM | #5 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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Going Headers/No Cats/and any aftermarket muffler is definitely not for everyone. I wouldn't even put Corsa as the loudest setup. But if you want to keep it more subdued, the NPP factory exhaust flows just fine for I'd say up to 750-800 RWHP. After that point, you may want to think about a 3" or Diverters if you goals are even bigger.
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02-22-2018, 05:02 PM | #6 |
Drives: 2013 ZL1 M6 Join Date: Sep 2016
Location: CA Bay Area
Posts: 248
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I am running Kooks with no cats and the factory NPP exhaust with the fuse pulled. It is loud enough to get a cops attention. As me how I know. HAHA. I may put the fuse back in to make it a little quieter. I am running a set of noweeds diverters so if I want loud I can just open them up. The cam sounds nice rumbling through them though.
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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 |
02-23-2018, 12:29 AM | #7 | |
Drives: Ashen gray zl1camaro Join Date: Jun 2016
Location: So Cal
Posts: 145
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02-23-2018, 08:29 AM | #8 |
Team 913
Drives: '14 ZL1, '15 Jeep GC, ‘22 Ram 2500 Join Date: Apr 2015
Location: USA, Central CA
Posts: 1,119
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I put a magnaflow in and it quieted it down , but didnt like the sound , went to regular magnaflow xpipe
Ive been thinking about having removable bullet mufflers installed where the cats go for when im at the track |
02-23-2018, 08:41 AM | #9 |
Drives: 2013 ZL1 M6 Join Date: Sep 2016
Location: CA Bay Area
Posts: 248
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I have had a magnaflow resonated x-pipe sitting in my storage for a couple months now. I will be putting it on soon so I can get my ticket signed off.
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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 |
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