does the ZL1 have the same NPP exhaust as the SS?

oldman · 12-04-2016, 05:50 PM

see title, I've already asked on the ZL1 forum but they don't deal with plebs like me.

Blk16SS · 12-04-2016, 06:05 PM

I really believe it is... I will be at Clay Cooley Chevy tomorrow. I will take a look..

oldman · 12-04-2016, 10:29 PM

Thanks, makes you think if Chevy changes nothing on the exhaust....

*Mr. Wyndham* · 12-04-2016, 10:50 PM

Quote:

Originally Posted by oldman

see title, I've already asked on the ZL1 forum but they don't deal with plebs like me.

The exhaust manifold is stainless steel, and I believe it features a "tri-y" design, similar to what they developed for the LT1. I think the diameter is bigger all the way back, but in essence...it's a similar system to the SS's NPP option.

oldman · 12-04-2016, 10:57 PM

http://www.chevrolet.com/content/dam...732x531-15.jpg

http://www.chevrolet.com/content/dam/Chevrolet/northamerica/usa/nscwebsite/en/Home/Vehicles/Performance/2017_Camaro_ZL1/Model_Overview/01_images/2017-chevrolet-camaro-zl1-sports-car-mo-performance-732x531-15.jpg[/URL]

SomeGeoffGuy · 12-05-2016, 08:48 AM

Different part numbers at GM. Probably a different "Tune" on the inside of the muffler. I am assuming you are talking about cat-backs.

-Geoff

KILLA BEE · 12-05-2016, 09:00 AM

3in pipes

SS 1LE · 12-05-2016, 10:09 AM

The ZL1 has slightly larger tips too...

Atomic Ed · 12-05-2016, 11:05 AM

I think I can see where you are going with this Oldman.

I would like to know what the discharge/outlet ID size is of the exhaust manifold.

KILLA BEE · 12-05-2016, 12:08 PM

I think the zL1 had bigger nuts and bolts as well

oldman · 12-05-2016, 01:30 PM

Quote:

Originally Posted by KILLA BEE

I think the zL1 had bigger nuts and bolts as well

nuts for sure

oldman · 12-09-2016, 04:08 PM

anybody actually know?

oldman · 12-27-2016, 11:30 AM

Looks like the exact same exhaust as the SS.

Atomic Ed · 12-27-2016, 11:50 AM

I'm thinking the same thing Oldman. Considering shorties and a primary cat delete since I see no real advantage on the ZL1 exhaust system

Do you think moving the secondary O2 sensors to behind the secondary cats will work? Not sure if the freer flowing secondary cats will suffice to keep the secondary O2 sensors happy.

12-04-2016, 05:50 PM	#1
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,324	does the ZL1 have the same NPP exhaust as the SS? see title, I've already asked on the ZL1 forum but they don't deal with plebs like me. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

12-04-2016, 10:29 PM	#3
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,324	Thanks, makes you think if Chevy changes nothing on the exhaust.... __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

12-04-2016, 10:57 PM	#5
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,324	http://www.chevrolet.com/content/dam...732x531-15.jpg http://www.chevrolet.com/content/dam/Chevrolet/northamerica/usa/nscwebsite/en/Home/Vehicles/Performance/2017_Camaro_ZL1/Model_Overview/01_images/2017-chevrolet-camaro-zl1-sports-car-mo-performance-732x531-15.jpg[/URL] __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

12-05-2016, 08:48 AM	#6
SomeGeoffGuy Drives: 2023 2SS Convertible Join Date: May 2009 Location: Metro Detroit Posts: 1,063	Different part numbers at GM. Probably a different "Tune" on the inside of the muffler. I am assuming you are talking about cat-backs. -Geoff __________________ '12 2SS RS Convertible - Traded in. '16 2SS Convertible - White on white, mag-ride, NPP, nav. Sold! '23 2SS Convertible -Same as above except orange.

12-05-2016, 09:00 AM	#7
KILLA BEE Black lightning Drives: 2021 ZL1 1LE A10 Join Date: Mar 2013 Location: Nottingham Md Posts: 1,997 View My Garage	3in pipes __________________ [ 2021 Camaro ZLE 10 speed

12-04-2016, 06:05 PM	#2
Blk16SS Drives: 2016 Chevy Camaro Join Date: Jun 2016 Location: Dallas,Tx Posts: 259	I really believe it is... I will be at Clay Cooley Chevy tomorrow. I will take a look..

12-05-2016, 10:09 AM	#8
SS 1LE マスタング = 遅い Drives: 2017 Chevrolet Camaro SS 1LE Join Date: Aug 2015 Location: Florida Posts: 7,061	The ZL1 has slightly larger tips too... __________________

12-05-2016, 11:05 AM	#9
Atomic Ed Drives: 2001 Audi TT, 2016 Camaro Join Date: May 2016 Location: Eastern Washington Posts: 833	I think I can see where you are going with this Oldman. I would like to know what the discharge/outlet ID size is of the exhaust manifold.

12-05-2016, 12:08 PM	#10
KILLA BEE Black lightning Drives: 2021 ZL1 1LE A10 Join Date: Mar 2013 Location: Nottingham Md Posts: 1,997 View My Garage	I think the zL1 had bigger nuts and bolts as well __________________ [ 2021 Camaro ZLE 10 speed

12-09-2016, 04:08 PM	#12
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,324	anybody actually know? __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

12-27-2016, 11:30 AM	#13
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,324	Looks like the exact same exhaust as the SS. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

12-27-2016, 11:50 AM	#14
Atomic Ed Drives: 2001 Audi TT, 2016 Camaro Join Date: May 2016 Location: Eastern Washington Posts: 833	I'm thinking the same thing Oldman. Considering shorties and a primary cat delete since I see no real advantage on the ZL1 exhaust system Do you think moving the secondary O2 sensors to behind the secondary cats will work? Not sure if the freer flowing secondary cats will suffice to keep the secondary O2 sensors happy.

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