02-24-2018, 11:02 AM | #29 | |
Drives: '17 2SS, NGM, MRC, DPP; '19 F150 Join Date: Apr 2017
Location: Katy (Houston), TX
Posts: 440
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For anyone saying they didn't get it because they don't want to make the neighbors mad... just put it in stealth mode when starting, valves stay fully closed. Much quieter than otherwise. But honestly, I quit doing that. Every neighbor I have has their own annoyances (letting their dogs bark, late night loud music by the pool, too sensitive car alarms, honking at their kids to hurry up, etc) ... so hearing that beast roar overrides my concern of annoying them! |
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02-24-2018, 11:56 AM | #30 | |
Drives: Tesla M3 LR-AWD [Former 1SS owner] Join Date: Jan 2018
Location: Miami
Posts: 950
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02-24-2018, 12:09 PM | #31 | |
Drives: 2016 2SS A8 Convertible Join Date: Oct 2016
Location: Maryland
Posts: 85
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The Chevy product is either a Borla or Corsa (I forget which) but has a little Chevy symbol stamped on each tailpipe which is a nice touch Honestly it is not better or worse than a bunch of the aftermarket solution that you could fit more cheaply, but for me personally the ability to keep my warranty intact was worth the higher price. The Chevy product does come with a dealer installed time but no idea what that actually does. Mark |
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02-24-2018, 01:02 PM | #32 | |
Drives: 17 SS 1LE Join Date: Dec 2015
Location: Houston
Posts: 1,920
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02-24-2018, 02:02 PM | #33 |
Banned
Drives: 2017 Camaro 2SS 6MT Join Date: Aug 2006
Location: Cleveland, Ohio
Posts: 4,372
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I'm quite happy without it. To me, frankly its a waste of money without a bump in hp.
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02-24-2018, 02:23 PM | #34 | |
Drives: Tesla M3 LR-AWD [Former 1SS owner] Join Date: Jan 2018
Location: Miami
Posts: 950
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Another case of RTFM! So I ran out and tested it and yes, it cuts off the SS's balls even on startup. Thankfully, I don't need it where I live. But it does make a noticeable difference for those that are worried about the start-up volume. |
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02-24-2018, 09:26 PM | #35 |
Drives: 2016 2SS A8 Non-NPP Join Date: Jul 2016
Location: South Dakota
Posts: 20
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Borla upgrade here
2016 2SS non NPP, installed Borla axledack this winter, can’t wait till it warms up
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02-24-2018, 11:01 PM | #36 |
Drives: '19 Corvette Stingray Convertible Join Date: Jul 2016
Location: Rochester NY
Posts: 141
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Yes true, about the HP bump! I think most of us get the NPP option or an aftermarket exhaust mainly for the more aggressive sound. Funny how the NPP exhaust on the Corvette with the same engine (LT1 455 HP) gains 5 HP and 10 lbs. ft. of torque , but on the Camaro with NPP...nada! Must have to do with the "suitcase" exhaust on the Camaro? The NPP exhaust on the Corvette with separate mufflers must flow better!
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'19 Corvette Stingray Convertible M7
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02-25-2018, 06:37 AM | #37 |
Drives: Tesla M3 LR-AWD [Former 1SS owner] Join Date: Jan 2018
Location: Miami
Posts: 950
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The sound of the exhaust note (esp the V8) is one of the joys of driving this car. NPP was a must. Gains irrelevant.
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02-25-2018, 11:21 AM | #38 |
Drives: '19 Corvette Stingray Convertible Join Date: Jul 2016
Location: Rochester NY
Posts: 141
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I agree.....mine came with the standard exhaust and is just too tame sounding, so I am installing the Borla ATAK axleback next week. If it came with the NPP exhaust I would have left it alone.
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'19 Corvette Stingray Convertible M7
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02-25-2018, 11:47 AM | #39 |
Drives: 2024 SS 1LE Join Date: Jul 2016
Location: Bolivar, MO
Posts: 230
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I've had both. My 1SS was non-NPP even with Flowmaster sounded good and was happy with it. When I traded it in for a 1LE with NPP the first startup I was sold on NPP. It just has the tone/sound that IMO the car should have. I guess i'm old enough (34) to be over the being loud for the sake of being loud so the straight headers or muffler delete doesn't do it for me but track mode NPP is great when I'm having fun but tour is perfect to actually have a conversation or radio or whatever. Really maybe Borla that retains NPP would be the only thing I'd even consider changing on my car and I really don't see me even doing that unless a used one for a good price came available.
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02-25-2018, 12:51 PM | #40 | |
Drives: 2023 BMW M4 Competition Join Date: Dec 2012
Location: USA
Posts: 657
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I have now had SS’s with and without NPP. Non npp is still quiter than npp in stealth mode and sounds better too imo. Npp definitely sounds better in all other settings however, not just louder. Miss the decel popping too. Interesting thought about the non npp probably weighting less than npp.
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2023 BMW M4 Competition (daily)
2022 ZLE M6 (weekend toy) 2022 BMW X3m40i Past: 2022 Tesla S Plaid 2020 Shelby GT500 sold 2019 Hellcat Redeye-traded for new GT500 2019 ZL1 A10 - sold (meh) 2019 Tesla M3P 2016 Hellcat Challenger - A8 sold but never forgotten 2016 Camaro 2SS M6 2014 Mustang GT A6 2012 Mustang GT M6 "brembo" 3.73/FBO 2012 Camaro SS L99 (Wife's)- slow |
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02-25-2018, 02:00 PM | #41 |
Drives: Camaro SS. 2001 Z3 M coupe Join Date: Jul 2016
Location: South Carolina
Posts: 23
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BTW, all come standard with the suitcase. I also have the Chevy Performance option. It is well made and has an awesome sound at start up and cruise, no drone and scary roar at wot. It is supported by Chevy, gets rid of weight and looks excellent. Cold start will rattle some windows, though.
Heartily recommend the product, and negotiate with several dealers for all in price, I paid less than list installed, and that’s the dealership that gets my business, they get it. |
02-25-2018, 10:09 PM | #42 |
Drives: 2017 1SS camaro ,2SS a 68 + 08 C6 Join Date: Dec 2017
Location: West palm beach
Posts: 495
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Like I stated before , I love the sound of the NPP, but not going to pay extra to have it and the fact that theres no HP increase makes it a moot point . My son backed the camaro into the garage and Ill tell you the stock exhaust sounds fine . ( if you're inside the car it's noticeable quieter , but outside it sounds raspy like the old school flowmasters )
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