I am wondering what exactly are true duals first off. And second what would it cost to put it on and what are the components and advantages. Thanks

 

Our cars come with a Y-pipe setup that comes off the engine in two pipes, joins into one pipe that goes over the axle, then in to a muffler and out the muffler with two pipes. True duals are two pipes all the way out from the engine. Most people use a crossover (X or H-pipe) that equalizes the flow and helps create a scavenging effect that draws more air out of the engine thus increasing horsepower. It is debatable whether there is more power gains from a true dual setup versus a good Y-pipe/catback system. However for sound, nothing beats true duals. And there is very good horsepower in these systems. I paid around 200 dollars for my system installed, but I don't have catalytic converters. Of course, without headers, you're getting ahead of yourself and won't realize the maximum gain if you put a system on before you add headers. If you like sounding mean as hell and turning heads wherever you go, true duals are for you. Check out ls1sounds.com and you'll get an idea of what they sound like. There are also pictures of various setups.

 

https://ls1tech.com/forums/showthread.php?t=139142

 

alright... can you buy the systems complete? Or once you put headers, you just buy the X-pipe and run straight exhaust pipes back...

 

Shops like texas speed and performance sell complete systems that dump before the rear axle. It is HIGHLY recommended you get headers before getting duals to save time/labor/etc on making them fit. They are all designed to be matched to headers anyway. TSP rumbler X setup behind coated pacesetter longtubes for well under $1k is a pretty godo deal if you ask me.

 

Yes, you gain power vs a Y-pipe. Some peak but mostly lower in the rpm range, yielding more power under the curve.

These questions could have been answered with a search and/or reading stickies.