Ok, So I've done a search and it seems my lack of termanlogy is off a little. Evidently "dumps" are not what I'm looking for. I've had my 2 chambers sitting in my trunk for a little under 2 months now and am finally a proud owner of a brand new UPR O/R X that just arrived today. So I may get time to install the system on Firday but wanted to customize it a bit. I was out at the local drag strip this past weekend and another mustang owner was telling me his exhaust system had some kind of setup on it that had a split at the beginning of his x-pipe. The way I understand it is you have the normal O/R x setup and on the x, you can somehow install some sort of flanges with a cap on either side that simply screw on and off. So when you get to the track you unscrew the caps and it's like running straight headers. Is anyone familier with this? I don't think it would cause a back pressure issue as some of the exhaust would obviously still flow through the system.
) I never got to hear those longtubes open