Originally Posted by TonyMontana
Check Magnaflow out. They have a quad tip version of the 16929 option for the dual exhaust out now.
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Online Magnaflow says "excl Summit" on that...the rectangular bumper cutout does not match that of the non-summit dual exhaust cutouts....
Just haven't been able to get the group buy off the ground so you are on your own for a custom solution for now. It involves 2 customizations to the non-Summit dual tip cat back. First, the quad tips are smallish for the Summit rectangular opening so Corsa used Corvette C6 tips since they are bigger diameter but then also had to stagger them so they followed the bumper skirt curve to not stick out (they look bad if you don't do this). The second change is reconfiguring the position of rear muffs and the very short pipe to the new dual-tip head, and a hangar relo too. Any good exhaust shop with stainless welding and mandrel bending skills can do it although the Corsa factory guys looked nicely challenged with the short/tight welding and bending as I watched from the sidelines. Don't know how to source larger tips than the stock one but I guess they would look fine. Larger do look beefier tho.
I'll send the Corsa guy another email about making this happen...never know.