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08-07-2016, 12:16 PM
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#1 |
 
Drives: 1969 Z/28 2013 LT 2016 2SS Join Date: Nov 2015
Location: FL
Posts: 48
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NPP muffler delete
I have dual mode NPP exhaust, if I delete my muffler, will it take away my ability to alter the valves and sound?
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08-07-2016, 01:52 PM
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#2 |
        
Drives: 2016 Hyper Blue 1SS Join Date: Jul 2015
Location: hampton roads
Posts: 2,763
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Yes.
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1ss/Auto-Hyper Blue
acs carbon flash spoiler, bmr springs, gm clear tails. Texas speed cam, 223/227 .635/.635 116 LSA, Kooks Long Tube Headers with green cats, MSD Atomic Air Force Intake, CAI Cold Air Intake, QTP cutouts. 503 hp Best so far 11.5 at 123 with a 1.83 60ft. BMR lower and upper trailing arms and upper control arms,E85 DELIVERED 12/29/15 http://youtube.com/bybcous " no talking only racing on my youtube" |
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08-07-2016, 04:43 PM
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#3 | |
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A Heartbeat Away.........
Drives: Not As Fast As I Would Like To Join Date: Mar 2016
Location: Maryland
Posts: 1,379
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Quote:
 There are many many threads about NPP and exhaust mods. 
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2016 Hyper Blue Metallic 2SS | A8 | MRC | Sunroof | Nav | Mishimoto Catch Can | GM CAI | Hurst Shifter | Borla S-Type Exhaust | Body Color Splash Guards | 1LE Splitter | GM Dark Tail Lights | ZL1 Third Brake Light | Custom Fuel Door, Badges & Bowties | Oracle Side Markers | Blacked Out Stuff | Opti-Coat Pro+ The problem with this world is stupidity. I'm not saying there should be penalties for stupidity, but why don't we just take the warning labels off everything and let the problem solve itself. Last edited by Hyper16; 11-11-2016 at 01:04 PM. |
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08-08-2016, 01:38 AM
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#4 | ||
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Drives: 1969 Z/28 2013 LT 2016 2SS Join Date: Nov 2015
Location: FL
Posts: 48
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Quote:
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08-08-2016, 01:42 AM
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#5 | |
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Drives: 2016 camaro ss Join Date: Oct 2010
Location: Spring, TX
Posts: 1,127
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Quote:
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2016 camaro 2SS hyper blue/Kalahari, A8, MRC, NPP, sunroof, SW headers through axleback, Circle D 3600rpm TC, Pray ported IM/TB, E85
Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp |
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08-08-2016, 01:45 AM
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#6 | |
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Drives: 1969 Z/28 2013 LT 2016 2SS Join Date: Nov 2015
Location: FL
Posts: 48
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Quote:
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08-08-2016, 02:45 AM
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#7 |
 Drives: 2016 1ss m6 Camaro Join Date: Jul 2016
Location: roxboro,nc
Posts: 197
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seems like this is highly debated,some get a cel with secondary cat delete,others dont. I read it depends on whether the welds are good or not? i havent done it on my car yet but plan to,since i dont wanna pay $2k for a borla
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08-08-2016, 08:03 AM
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#8 |
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Drives: 2016 Camaro 2SS A8 Join Date: Dec 2015
Location: Charlotte, NC
Posts: 161
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I just did the secondary cat delete on Sat. No codes yet, but the place I went to does excellent welds.
Videos don't do the sound justice. The startup has more of a bark to it, revs are ripping loud. This along with the npp fuse pull and its crazy loud at WOT. Easy mod if you like the NPP muffler sound, this just improves on it. |
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08-08-2016, 01:23 PM
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#9 |
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Drives: 2016 1ss m6 Camaro Join Date: Jul 2016
Location: roxboro,nc
Posts: 197
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I actually went and had the secondary cat delete done today,it sounds really good to me,but it's still fairly quiet.if you like LOUD exhausts the npp with secondary cat delete won't fulfill your needs
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08-08-2016, 01:45 PM
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#10 |
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Drives: 2016 1ss m6 Camaro Join Date: Jul 2016
Location: roxboro,nc
Posts: 197
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The thing that kills the stock muffler is it's very quiet at idle except for on cold starts,with the secondary cat delete you get a small idling rumble,and under wot it sounds pretty hateful lol.i personally like this sound,others will say it's still to quiet and I don't wanna shell out $2k on a Borla system or others
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08-08-2016, 04:21 PM
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#11 |
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Drives: 2016 Camaro 1ss Join Date: Mar 2016
Location: Western NY
Posts: 43
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How about secondary cat delete with a axle back stainless works npp muffler. Save some money. Anyone try this??
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08-08-2016, 06:36 PM
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#12 |
Drives: 2016 Hyper Blue Metallic 1SS M6 NPP Join Date: Jan 2016
Location: Indiana
Posts: 891
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Here is a thread where a guy just cut his off. http://www.camaro6.com/forums/showthread.php?t=457867
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2016 Hyper Blue Metallic 1SS M6 with body color hood vents, Silver broken 5 spoke wheels, NPP dual exhaust, Dark Night Interior Spectrum Lighting, Illuminated door sills plates. Upgrades include: Roto-Fab intake, Mishimoto catch can, MBRP cat-back Race exhaust, TSP 1 7/8 headers, EFI E85 Flex Fuel, MRR M017 graphite wheels with Nitto N555 G2 tires, Goodridge stainless steel brake lines, Powder coated Brembo calipers, BMR suspension, Eibach sport springs, Emblempros fender badges Order ID: TDHQMS 1100 on 01/07/2016 at Penske Chevrolet 6000 on 02/23/2016 Delivered to customer |
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08-08-2016, 06:49 PM
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#13 |
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Drives: 16' Camaro SS Midnight Grey 6spd Join Date: Aug 2016
Location: Florida
Posts: 48
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Not a bad option, but that will still cost you around a $1000 after you buy the axle back from SW and pay the shop for the pipes to be welded in. Another $480 and you can have a Borla system all 304SS, no crimps and proven sound. That price wont give you the valves though :/
I just cringe alittle at the thought of chopping away at the OEM system and taking the risk of a bad weld on the cat delete. These are nice cars and a hefty price, if youre thinking of keeping this car and building it up, then why not do it right and go full aftermarket catback? |
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08-08-2016, 06:53 PM
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#14 |
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Account Suspended
Drives: 2016 2SS Join Date: Mar 2014
Location: Palm Desert
Posts: 2,353
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I deleted my npp and am running no mufflers. Sounds great and I get lots of compliments. Had a guy run across a parking lot to take a video of it.
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