Borla 10-15 Camaro SS 6.2L V8 AT/MT RWD 2Dr X-Pipe 2.5inBorla 10 15 Camaro SS 6. 2L V8 AT MT RWD 2Dr X Pipe 2. 5in For those who have purchased our Axle Back system or GM Performance rear mufflers and are looking to upgrade with a 2. 5" diameter Merge X Pipe with Mid Pipes, here you go. X Pipes unleash horsepower and create a custom sound. This is essentially the front portion of our Cat Back system for the 2010 2015 Camaro 6. 2L. Works with BORLA 11774, 11775. Built from premium T 304 stainless steel,