4 CATs are STOCK on 2012+ C6s!!! - Exhaust Upgrade Question for my GS???
12-15-2014, 11:30 PM
#41
Melting Slicks
The 2011 and 2010 Grandsport dont have them so they are coming off of my car ASAP...
Last edited by Cor430vette; 12-15-2014 at 11:37 PM.
12-15-2014, 11:34 PM
#42
Melting Slicks
I think the corsa is only 300 bucks and seems like on ebay people are selling their old X pipes for around 200+ so an extra 100 bucks and you get a better flowing and better quality corsa X pipe...
I am considering the Billyboat Fusion and bolting it up to the corsa X pipe...or an older X pipe if I can find it used and cheap..
Last edited by Cor430vette; 12-15-2014 at 11:40 PM.
12-16-2014, 05:48 PM
#43
Melting Slicks
Talked to a rep at BillyBoat, he told me that those cats are not monitored, are useless and there is absolutely no way for them to throw a code.
Billyboat has a Grand Sport X pipe ready to purchase that will bolt right where the old cat'd oem pipe goes.
I bought mine from Southern Car parts along with a Billyboat fusion exhaust today...!!! https://www.corvetteforum.com/forums...t-systems.html
Billyboat has a Grand Sport X pipe ready to purchase that will bolt right where the old cat'd oem pipe goes.
I bought mine from Southern Car parts along with a Billyboat fusion exhaust today...!!! https://www.corvetteforum.com/forums...t-systems.html
12-16-2014, 05:54 PM
#44
^I can confirm that I've installed a CATBACK exhaust system, from Borla (atak), on my 2013, that eliminated the additional two cats and my car has not thrown a code or performed poorly in any circumstances. While doing the install I did not see any additional bungs for sensors on the OEM X pipe with the two added cats, so I feel confident they are not monitored.
I do feel that that the elimination of cats typically warrants a retune, but the two primary cats are still there .. so I'm really not sure in this case.
I do feel that that the elimination of cats typically warrants a retune, but the two primary cats are still there .. so I'm really not sure in this case.
12-16-2014, 06:52 PM
#45
Melting Slicks
here is the sound of my 2011 with npp on dyno.and in car 3rd gear..don't know if that gives you an idea...
http://s243.photobucket.com/user/goo...0grand%20sport
bud
http://s243.photobucket.com/user/goo...0grand%20sport
bud
12-17-2014, 08:39 AM
#46
Team Owner
Member Since: Sep 2005
Location: Big Bend Country, TX
Posts: 29,114
Received 2,186 Likes
on
1,337 Posts
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
12-18-2014, 12:51 AM
#48
Team Owner
Member Since: Sep 2005
Location: Big Bend Country, TX
Posts: 29,114
Received 2,186 Likes
on
1,337 Posts
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15- '16-'17-‘18-‘19-'20-'21
NCM Lifetime Member
12-18-2014, 09:30 AM
#49
Melting Slicks
at my age, i just assume people at a dealership can't know everything..let the customer beware!
resonators are for a 99 lincoln...
anyway, i love the popping on decel...
resonators are for a 99 lincoln...
anyway, i love the popping on decel...
