OEM Tune - NPP Exhaust vs Standard Exhaust - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

SixSpeeder · 01-21-2015, 05:36 PM

Not sure if this has been discussed, but is the factory tune the same for cars equipped with the dual mode exhaust? I understand that the mufflers are pretty far downstream and after the very restrictive cats, so I'd assume that it has the same tuning as a standard SS and just slightly adapts to the slightly increased flow.

Anyone know the answer?

LSXBumblebee · 01-21-2015, 05:49 PM

In my build thread I have a dyno of a 14' ss with npp maybe you can compare that to another.

SixSpeeder · 01-22-2015, 06:11 PM

Quote:

Originally Posted by ericsysmin

In my build thread I have a dyno of a 14' ss with npp maybe you can compare that to another.

I've heard that the NPP exhaust adds power verified on a dyno in other threads, but I'm curious if the factory software (map) is exactly the same for cars equipped with the dual mode exhaust, or whether Chevy took advantage of the slightly increased flow at upper RPM and altered the stock map. I guess nobody knows..

Destructo09 · 02-04-2015, 04:50 PM

I see no reason why it would be different, on the corvettes the NPP is supposed to add an extra 5hp, this is pretty minimal and wouldn't affect how the engine runs.

Dubscamaro · 08-08-2015, 02:43 AM

Does anyone know this answer? sorry for bumping old thread but I need to know please.

01-21-2015, 05:36 PM	#1
SixSpeeder Drives: 2015 Camaro SS Join Date: Jan 2015 Location: Seattle, WA Posts: 191	OEM Tune - NPP Exhaust vs Standard Exhaust Not sure if this has been discussed, but is the factory tune the same for cars equipped with the dual mode exhaust? I understand that the mufflers are pretty far downstream and after the very restrictive cats, so I'd assume that it has the same tuning as a standard SS and just slightly adapts to the slightly increased flow. Anyone know the answer? __________________ 2015 Summit White Camaro 1SS 6-Speed: NPP Exhaust, RS Package, Short Shifter, Nav ~My Build~

02-04-2015, 04:50 PM	#4
Destructo09 Drives: 2010 CGM Camaro 2SS/LS3 Join Date: Oct 2013 Location: Raleigh-Durham Posts: 1,409	I see no reason why it would be different, on the corvettes the NPP is supposed to add an extra 5hp, this is pretty minimal and wouldn't affect how the engine runs. __________________ 2010 2SS BMR 1" Springs Koni Orange struts/shocks 1LE rear sway bar SRP Racing Pedals Hurst Billet short shifter Square tire/wheel setup Elite Engineering Catch Can Stainless Power longtubes/highflow cats K&N Typhoon CAI RPM Motorsports of Garner, NC dyno tune (421 RWHP)

08-08-2015, 02:43 AM	#5
Dubscamaro Living Life in MPH. Drives: 15 Summit White 2SS 1LE Join Date: Dec 2013 Location: Arizona Posts: 1,114 View My Garage	Does anyone know this answer? sorry for bumping old thread but I need to know please. __________________ Devon W.

01-21-2015, 05:49 PM	#2
LSXBumblebee LSX Bumblebee Drives: 2014 LSX Camaro Join Date: Jul 2014 Location: United States Posts: 434 View My Garage	In my build thread I have a dyno of a 14' ss with npp maybe you can compare that to another.