Race Ready has a line of turn downs to work with your system. The three types they offer use the standard 3-bolt flange system that most exhaust systems use. These can be bolted up to their electric exhaust cutout, or to the exhaust pipes under the car to point down or to the side.
The first turn down is made of the aluminized tubing that I have on my Camaro, and that most exhaust shops uses because of its low cost, light weight, and low-rust characteristics. The flange is welded to the turndown, so you will need to bring these in with you to the exhaust shop for fitment.
The cleanest exhaust are the stainless steel systems. Instead of being MIG welded together like the aluminized systems, you can use a TIG welder for some really clean welds. They also don't rust, not even at the welds. Race Ready has a stainless turn down tip with a fixed flange like the aluminized version.
The third style is their swivel tip. It uses the same 3-bolt mounting flange, but it isn't fixed, so you can rotate it any direction you please. For now it comes in a ceramic coated aluminized version but Race Ready has a stainless version that isn't on the website just yet.