I have my exhaust installed. It went very well, I used a Summit 2.25" dual system that I got on sale for $135.00. It installed and cleared everything easy. I used 2.25" mandrel bent tubing to construct the pipes from the Langdon's split headers to the Summit exhaust pipes. A lot of cutting, fitting and welding, but a good result.
Follow the photobucket link for pictures of my project.
![](http://i75.photobucket.com/albums/i317/porschevguy/1971%20Nova/100_3598.jpg)
![](http://i75.photobucket.com/albums/i317/porschevguy/1971%20Nova/100_3602.jpg)