Exhausting Question

[Explorer]

About time to run the exhaust on my project in sig line. Clifford dual outlet 2 1/4" header. Routing is a problem on this thing due to having a transfer case. I was thinking about a single muffler. Both Magnaflow and Flowmaster make a dual in/dual out 2 1/4" muffler. Just not sure if they are actually two seperate mufflers in one or combine inside muffler. So should I X-pipe them? I know I need to reduce down to 2" to create a bit of backpressure. How long would the tailpipes need to be to accomplish this? Dumping them out in front of rear wheels, it's a pickup style Bronco, or carrying them on out and dumping out the rear? Naturally the short runs would make for easier fitment. What would you do?

 

[rbohm]

8) the dual in dual out muffler is a single muffler, just with two openings on each side. if you use this muffler you dont need an X pipe as the muffler itself acts as an X pipe. it also simplifies the system, as well as making it easy to build a true dual exhaust system. as for pipe size, i would go with 2" pipe out the back. another option would be to use a Y pipe to go from a dual outlet header to a single inlet/outlet muffler, and then use another Y pipe to split back out to a dual exhaust. check out www.classicinlines.com for more exhaust options. mike sells a few different kits.