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When I installed it, the tips were at an angle and they were not centered because one of the exhaust hangers were too long. After some minor adjustments, everything worked out but it was a huge pain in the *** expecting perfection and ending up with crappy fitment... on a $2K plus system.
OP: I would go with the Borla set-up since with their system, you will keep your NPP functionality, plus it just sounds downright mean with the Attack set-up with the valves open. I like Corsa too, but since you sprung for the NPP exhaust, why not keep that functionality.
Z06's do not have AFM valves. All other C7's, manual and auto DO HAVE AFM valves. All Z06's have NPP valves. Only C7's with the NPP exhaust option (and all Z51's) have the NPP valves.
That said, Borla is the best sounding exhaust IMO. Catless X pipe with the Borla S type NPP is amazing. By removing the secondary cats you get more volume and popping/cracking. But by having the S-Type vs the ATAK, you get a cleaner deeper sound. So the car has no drone at cruise, isnt overly loud going through a parking lot, but when you mash the gas its heavenly at a deafening volume.
Z06's do not have AFM valves. All other C7's, manual and auto DO HAVE AFM valves. All Z06's have NPP valves. Only C7's with the NPP exhaust option (and all Z51's) have the NPP valves.
That said, Borla is the best sounding exhaust IMO. Catless X pipe with the Borla S type NPP is amazing. By removing the secondary cats you get more volume and popping/cracking. But by having the S-Type vs the ATAK, you get a cleaner deeper sound. So the car has no drone at cruise, isnt overly loud going through a parking lot, but when you mash the gas its heavenly at a deafening volume.
thakks a ton. This is exactly what I was looking for. Wow. You nailed it. Thanks again
Anyone regret installing Corsa Extreme valve backs on 2015-16 with NPP?
Any CELs?
Ready to make such an installation and having 2nd thoughts.
Thank you.
First thing I did to my GS was rip off the NPP and put on Corsa Xtremes
and a double Helixx X-Pipe.
Only regret is that I did not have the system sitting on the floor
the day I brought the car home
This is by far and away the #1 selling exhaust set up for CCA
Z06's do not have AFM valves. All other C7's, manual and auto DO HAVE AFM valves. All Z06's have NPP valves. Only C7's with the NPP exhaust option (and all Z51's) have the NPP valves.
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03-12-2016, 11:30 PM
