The general word around here is that performance will get worse for a naturally aspirated V6 if you go to a dual exhaust, especially in the low end range. Basically the engine doesn't push enough air to take advantage of the increased volume and it ends up hurting performance.
I google'd 'exhaust scavenging volume' and found the following link http://www.bigcitythunder.com/pages/understanding_exhaust.pdf. It looks (I only briefly scanned it) like a pretty good read for some better understanding of what your exhaust can do for you.
The general word around here is that performance will get worse for a naturally aspirated V6 if you go to a dual exhaust, especially in the low end range. Basically the engine doesn't push enough air to take advantage of the increased volume and it ends up hurting performance.
I google'd 'exhaust scavenging volume' and found the following link http://www.bigcitythunder.com/pages/understanding_exhaust.pdf. It looks (I only briefly scanned it) like a pretty good read for some better understanding of what your exhaust can do for you.
It is true that some engines are mechanically tuned to "X" amount of backpressure and can show a loss of low-end torque when that backpressure is reduced. It is also true that the same engine that lost low-end torque with reduced back-pressure can be mechanically re-tuned to show an increase of low-end torque with the same reduction of back-pressure.
Assuming that an exhaust system is otherwise properly designed, equal length pipes offer some benefits that are not present with unequal length pipes. These benefits are smoother engine operation, tuning simplicity and increased low-to-mid range torque.
Duals don't hurt me at all. Although I would say keep the single unless you like the looks. I have Mac long tubes, off road pipes, Mac prochamber and moroso spiral flow mufflers, I run 14.10's, so they are helping. I started with JBA true duals, then added MAC shorties, then took the cats off, then the current system. The true duals sounded fine and I liked the looks, but they weigh more because there are now two mufflers and pipes.
No power loss on my part with a big exhaust, but I have probally pushed my car harder then most.
Thanks for the help guys,
I will probably go with a dual exhaust and x-pipe from basanni after listening to all the clips out there. That article was pretty helpful and if I am going for performance in the long term, i.e. supercharger/turbo then it would seem wise to spend a few more bucks for the most open exhasut possible.