[MPKind]

Without getting too technical, what could a guy do to "tune" the exhaust. I'm aware of the "X" pipe and the "H" pipe, but my thinking is that in order to truly tune the exhaust so that it will scavenge and flow well, one would have to look at the whole system.

With the Long Branch manifolds, one could just install a true dual exhaust with some kind of muffler. Or, add an "X" pipe, some good flowing mufflers that fit the car and sound nice.

How would you describe a tuned exhaust?

[Ollie]

With out getting too technical a true "tuned" exhaust is not possible on a street car. There is shock wave that travels up and down the header pipe from the exhaust valve to the collector. The length of the header pipe is calculated so that this shock wave is leaving the exhaust valve as the valve is opening in the peak horsepower RPM of the engine.
This helps draw the exhaust gasses out of the cylinder and is refered to is exhaust scaving.
In order for the shokwave not to interfear with adjsent cylinders, some of the exhaust pipe cross over to the opposite collector. If you have ever seen photos of a race car engine with headers. You will see what a jumble of exhaust pipes they are. The Ram Air manifolds and tube headres can, at best be called low restriction exhaust. The addition of the X pipe will help to reduce the restriction.

[MPKind]

OK, that's a good enough explanation for me. Thanks!