02-01-2020, 12:21 PM | #15 |
Drives: 2019 2SS Join Date: Mar 2019
Location: WA
Posts: 67
|
I ordered my SS without NPP. After years of listening to loud cars I wanted performance without noise.
|
02-01-2020, 12:35 PM | #16 |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,052
|
That's the beauty of NPP, loud when you want it, quiet when you want it... Just the touch of the button...
__________________
2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph... |
02-01-2020, 01:11 PM | #17 | |
Drives: 2020 LT1 Black Join Date: May 2013
Location: MO
Posts: 562
|
Quote:
If you're a loyal Chevy customer and have an older Camaro to trade for a new one guess what, they don't care! |
|
02-01-2020, 02:01 PM | #18 |
Account Suspended
Drives: 19 Camaro SS 1LE, 03 Ford Lightning Join Date: Nov 2019
Location: South Carolina
Posts: 334
|
|
02-01-2020, 10:45 PM | #19 |
Drives: '17 2SS convertible'20 Yukon Denali Join Date: Nov 2011
Location: Cedar Park, Texas
Posts: 2,934
|
The nice thing about the NPP is that you can pull the fuse that controls the system (F51) and the valves stay open all the time. I have a switch so I can turn it off and on. Not sure if the later models will let you pull the fuse without a CEL. Mine is a 2017.
__________________
Richard
2017 2SS SIM convertible, A8, NPP, MRC, 56R wheels, GM CAI, Diode Dynamics Side Markers Delivered: 08/15/2016 #TeamBeckyD |
02-02-2020, 12:41 AM | #20 | |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: SoCal
Posts: 3,052
|
Quote:
__________________
2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph... |
|
02-02-2020, 01:59 AM | #21 |
Drives: 2018 SS, 2016 GT Join Date: Mar 2018
Location: California
Posts: 210
|
Also, NPP equipped cars are tuned differently like the Corvettes with sports exhaust. They supposedly have about 10 more horsepower, but the real difference is the over-run and burble in the tune.
A couple friends have modified exhausts the same as mine but bought the cars without NPP and they don't have the same thunder burble in the over-run because it's not built into the tune. |
02-02-2020, 02:16 AM | #22 | |
Drives: 2015 Mustang GT Join Date: Jan 2020
Location: Canada
Posts: 8
|
Quote:
Hahaha... They love stealing customers from the longtime rival. Will trade it in. Thanks! |
|
02-02-2020, 02:24 AM | #23 |
Drives: '19 camaro 2ss Join Date: Jan 2020
Location: California
Posts: 115
|
|
02-02-2020, 02:29 AM | #24 | |
Drives: 2015 Mustang GT Join Date: Jan 2020
Location: Canada
Posts: 8
|
Quote:
Thank you all for your replies. They were very enlightening. Will go for 2SS NPP with manual transmission. Quad tips look super! Will likely get a a certified preowned 2019 or 2018 since I'm not patient enough to do the break-in period. Will post photos when I get it. |
|
02-02-2020, 03:56 AM | #25 | |
Account Suspended
Drives: Fast if no one's looking Join Date: Aug 2019
Location: Cleveland, Ohio
Posts: 1,794
|
Quote:
|
|
02-02-2020, 05:08 AM | #26 | |
Drives: 2018 SS, 2016 GT Join Date: Mar 2018
Location: California
Posts: 210
|
Quote:
Apparently theres even a single tip upgrade that reduces back pressure and increases flow by 25%. Chevys words, not mine. I assume since there is a different tune for npp, it really is closer to the 10hp the Corvette unoficially gets. |
|
02-02-2020, 06:12 AM | #27 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,649
|
Quote:
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
|
02-02-2020, 07:00 AM | #28 | |
Drives: 2017 Camaro 1SS M6 Join Date: Apr 2015
Location: Indy
Posts: 2,460
|
Quote:
Notes: CAI: He mentioned the tune corrects the MAF linearization table and was critical. Going through cert process with agencies is why it's taking long for them to release it. Without tune, you could see some level of power gain initially, but once system is in a learned state you will not see much of a gain at all. With their latest tune, they are not seeing enough of a gain in power to advertise anything (maybe up to 3hp). This speaks volumes to how good the stock airbox really is. I personally would keep the stock airbox, but if I was in the market for one I would definitely go with the GM part that comes with a tune and corrects the MAF signal. GM PP exhaust (for non-NPP cars): He indicated from a flow standpoint, the GM PP (Borla) muffler is in between the base exhaust and NPP exhaust. Neither NPP or the GM PP exhaust provide any significant gain in power over the base unit - not enough for them to advertise any power benefit. They will instead be advertising the pressure drop benefit. NPP exhaust: Has special tuning to inject small quantities of fuel on decels to cause the crackle and pop sound. This was Al's request. He did not believe the standard exhaust had this. I agree it sounds cool, but would really prefer to have the option to turn off that feature.
__________________
2017 Camaro 1SS, M6, Hurst shifter, Hyper Blue, NPP, Gray Split Spoke Wheels
Best 1/4 Mile: 12.24 @ 115.9 mph |
|
|
|
Post Reply
|
Tags |
exhaust sound |
|
|