NPP vs Aftermarket Cat-back - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TorchedLSX · 09-16-2019, 09:15 PM

Hey All,

I am new to the 5th gen Camaro, though I have had many 4th gen f-body's and few C5's, so I am not new to the LS platform. I am picking up a 2015 1LE in a few days with the NPP exhaust. I know about the fuse pull mod, but my question is how does the NPP rank for flow vs an aftermarket cat-back? Also, is there any benefit changing any part of this exhaust with the exception of going to Long Tubes?

Thanks for the help.

Rons1le · 09-16-2019, 09:23 PM

NPP with long tube headers is one of the best sounding exhaust on the Camaro. I don't think there's any performance gains for changing it. when you put long tube headers on and put an x pipe in place of the h pipe. And I put a remote on the fuse so I can go quiet when I want and loud with a push of a button. Download the video and tell me what you think.https://cloud.tapatalk.com/s/5d8034f4...2697833318.mp4

Sent from my SM-G960U using Tapatalk

pyroguy · 09-16-2019, 09:25 PM

First off, welcome to the forums!!

As for your questions, the 5th gen exhaust flows really well with the exception of the factory cats. Personally if the NPP exhaust was available for my car from the factory originally I would have saved my money from buying a catback and put it towards other mods. Long tube headers and NPP exhaust sound GREAT, IMO.

TorchedLSX · 09-16-2019, 10:25 PM

Quote:

Originally Posted by Rons1le

NPP with long tube headers is one of the best sounding exhaust on the Camaro. I don't think there's any performance gains for changing it. when you put long tube headers on and put an x pipe in place of the h pipe. And I put a remote on the fuse so I can go quiet when I want and loud with a push of a button. Download the video and tell me what you think.https://cloud.tapatalk.com/s/5d8034f4...2697833318.mp4

Sent from my SM-G960U using Tapatalk

Awesome, thanks for the input. Your car sounds awesome! Where did you get the remote?

Rons1le · 09-16-2019, 10:37 PM

Watch some of the YouTube videos on the diy npp controller. Corvette and Camaro use same components.
https://youtu.be/lYDBqrpjIBQ

Sent from my SM-G960U using Tapatalk

J Rod · 09-17-2019, 09:38 AM

NPP + stock manifolds = meh
NPP + long tube headers = HELL YEH!

Juiced1 · 09-17-2019, 10:11 AM

Welcome to the board and congrats on the Camaro

It is a great sound with headers. We just finished up a cammed 1Le with headers and the stock NPP and it sounded perfect. It is a 2.5" exhaust however and around 650-700rwhp it will start to cost you some power over a 3" system.

When you're ready to order some of these mods hit us up. We'll get you the parts that work for your goals and budget.

G8One2 · 09-17-2019, 11:18 AM

Idk man.... It's hard to beat long tube headers and a Corsa exhaust. I'm not doubting long tubes with the NPP sounds good, I'm sure it does, but I don't think it sounds as good as Corsa with long tubes. Everyone has their own opinions about it though.

DBHWT · 09-17-2019, 11:39 AM

Long tube, cat delete and NPP is excellent !!!

Matty Ice · 09-17-2019, 01:24 PM

Won't pick up any horsepower changing the cat-back. The Z28 uses the same mufflers just has 2.75" pipes.

Hi-flo cats/no cats will give you some additional power

Headers, Hi-flo cats or no cats and tune will give you the most additional power.

CAI, Bo White PTB, headers, hi-flo cats and a tune really wake the 1le up.

NPP is the best all around sounding exhaust and you can control how loud it is. But each exhaust manufacture has their own unique sound though, pick what you like.

G8One2 · 09-17-2019, 01:59 PM

Quote:

Originally Posted by Matty Ice

Won't pick up any horsepower changing the cat-back. The Z28 uses the same mufflers just has 2.75" pipes.

Hi-flo cats/no cats will give you some additional power

Headers, Hi-flo cats or no cats and tune will give you the most additional power.

CAI, Bo White PTB, headers, hi-flo cats and a tune really wake the 1le up.

NPP is the best all around sounding exhaust and you can control how loud it is. But each exhaust manufacture has their own unique sound though, pick what you like.

I agree. You will not pickup anymore power going with an aftermarket exhaust vs the NPP. After the header installation and the use of cats or not, it's really just a preference in how it sounds. Many people prefer to spend that money elsewhere which is also, a good choice. $1500 could go a long way toward other mods.

Reichler · 09-17-2019, 02:46 PM

Headers, Catless mids, NPP, and some custom tuning:

G8One2 · 09-17-2019, 03:52 PM

Headers and Corsa catback exhaust

https://youtu.be/lHngdtu7vzM?t=24

Ashen2SS · 09-17-2019, 08:28 PM

https://youtu.be/sQsgVe-ykhI

09-16-2019, 09:15 PM	#1
TorchedLSX Drives: 2015 Camaro 2SS 1LE Join Date: Sep 2019 Location: Woodstock, GA Posts: 23	NPP vs Aftermarket Cat-back Hey All, I am new to the 5th gen Camaro, though I have had many 4th gen f-body's and few C5's, so I am not new to the LS platform. I am picking up a 2015 1LE in a few days with the NPP exhaust. I know about the fuse pull mod, but my question is how does the NPP rank for flow vs an aftermarket cat-back? Also, is there any benefit changing any part of this exhaust with the exception of going to Long Tubes? Thanks for the help.

09-16-2019, 09:23 PM	#2
Rons1le Drives: 2015 Camaro 2SS RS 1LE AGM Join Date: Oct 2013 Location: Galion, Oh Posts: 531 View My Garage	NPP with long tube headers is one of the best sounding exhaust on the Camaro. I don't think there's any performance gains for changing it. when you put long tube headers on and put an x pipe in place of the h pipe. And I put a remote on the fuse so I can go quiet when I want and loud with a push of a button. Download the video and tell me what you think.https://cloud.tapatalk.com/s/5d8034f4...2697833318.mp4 Sent from my SM-G960U using Tapatalk __________________ 2015 2SS RS 1LE NPP/w Kooks headers, Procharged, ID1050X injectors, Katech belt tensioner, Mighty Mouse Catch Can, BMR subframe connectors, Matco driveshaft loop, AEM Wideband/Boost/Fuel gauges , Z/28 Splitter and Spoiler/w Wicker bill, Power Stop rotors and brake pads, MRR Z/28 Rep Wheels 20" w/p zeros 285 fronts and 305 rears, ZL1 addons Rock guards and Tow hook, Rear window louvers, Flags on the quarter windows and the moonroof, Billet aluminum door handles.

09-16-2019, 09:25 PM	#3
pyroguy Started#gottalovethatblue Drives: ABM #832 Join Date: Apr 2013 Location: TN Posts: 7,077 View My Garage	First off, welcome to the forums!! As for your questions, the 5th gen exhaust flows really well with the exception of the factory cats. Personally if the NPP exhaust was available for my car from the factory originally I would have saved my money from buying a catback and put it towards other mods. Long tube headers and NPP exhaust sound GREAT, IMO. __________________ '10 Camaro 2SS/RS \| Aqua Blue #832 of 3,903 \| Silver Stripes Check out my build thread

09-16-2019, 10:37 PM	#5
Rons1le Drives: 2015 Camaro 2SS RS 1LE AGM Join Date: Oct 2013 Location: Galion, Oh Posts: 531 View My Garage	Watch some of the YouTube videos on the diy npp controller. Corvette and Camaro use same components. https://youtu.be/lYDBqrpjIBQ Sent from my SM-G960U using Tapatalk __________________ 2015 2SS RS 1LE NPP/w Kooks headers, Procharged, ID1050X injectors, Katech belt tensioner, Mighty Mouse Catch Can, BMR subframe connectors, Matco driveshaft loop, AEM Wideband/Boost/Fuel gauges , Z/28 Splitter and Spoiler/w Wicker bill, Power Stop rotors and brake pads, MRR Z/28 Rep Wheels 20" w/p zeros 285 fronts and 305 rears, ZL1 addons Rock guards and Tow hook, Rear window louvers, Flags on the quarter windows and the moonroof, Billet aluminum door handles.

09-17-2019, 09:38 AM	#6
J Rod Drives: '14 BRM 1LE 2SS/RS Join Date: Nov 2017 Location: Ft. Wayne, IN Posts: 804	NPP + stock manifolds = meh NPP + long tube headers = HELL YEH! __________________ *592 HP/590 TQ* LSA Blower w/ 2.45 Griptec, Reinforced Brick, FIC 1000 injectors, JRE FPCM, LFP Dual Pass HX, ZL1 IC pump, RotoFab CAI, Bo White TB, Coated Stainless Power 1-7/8" LTs, NPP, NGK TR7IX, Mighty Mouse Wild CC, AEM X-Series WB, Aeroforce Interceptor, MGW Shifter, Z28 Grill, Gary's Custom ZL1 Rockers, Hero Tails, Tuned by IMC

09-17-2019, 10:11 AM	#7
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,648	Welcome to the board and congrats on the Camaro It is a great sound with headers. We just finished up a cammed 1Le with headers and the stock NPP and it sounded perfect. It is a 2.5" exhaust however and around 650-700rwhp it will start to cost you some power over a 3" system. When you're ready to order some of these mods hit us up. We'll get you the parts that work for your goals and budget.

09-17-2019, 11:18 AM	#8
G8One2 Drives: 2014 Camaro 2SS Join Date: Feb 2015 Location: Metro Detroit Posts: 492	Idk man.... It's hard to beat long tube headers and a Corsa exhaust. I'm not doubting long tubes with the NPP sounds good, I'm sure it does, but I don't think it sounds as good as Corsa with long tubes. Everyone has their own opinions about it though.

09-17-2019, 11:39 AM	#9
DBHWT Drives: 2013 SS 1LE Join Date: Nov 2011 Location: Cincinnati / N KY area Posts: 560	Long tube, cat delete and NPP is excellent !!!

09-17-2019, 01:24 PM	#10
Matty Ice Drives: 2015 SS/RS 1LE Join Date: Dec 2014 Location: Milwaukee, WI Posts: 537	Won't pick up any horsepower changing the cat-back. The Z28 uses the same mufflers just has 2.75" pipes. Hi-flo cats/no cats will give you some additional power Headers, Hi-flo cats or no cats and tune will give you the most additional power. CAI, Bo White PTB, headers, hi-flo cats and a tune really wake the 1le up. NPP is the best all around sounding exhaust and you can control how loud it is. But each exhaust manufacture has their own unique sound though, pick what you like. Last edited by Matty Ice; 09-17-2019 at 01:25 PM. Reason: spelling

09-17-2019, 03:52 PM	#13
G8One2 Drives: 2014 Camaro 2SS Join Date: Feb 2015 Location: Metro Detroit Posts: 492	Headers and Corsa catback exhaust https://youtu.be/lHngdtu7vzM?t=24

09-17-2019, 08:28 PM	#14
Ashen2SS Drives: 2014 Camaro SS 2SS/RS Join Date: May 2018 Location: WF, TX Posts: 15	https://youtu.be/sQsgVe-ykhI