| Re: Dual Exhaust on a 4.9 Sixty Special Brand new Magnaflow. Not sure of the pipe diameter though, you would have to measure on the Caddy then look it up in the Magnaflow catalog to make sure you get the right one.
According to Walker, the mid-pipe diam right before the exhaust is 2.5". Best fit Magnaflow exhaust would be part# 12265 (2.5" out) or 12266 (2.25" out). again, best to measure first.
The tailpipes that come out on each end are just 90* elbows the muffler shop bent on site to get the angles right, then welded the polished tips on the ends.
If you do it yourself, it should be easy enough with store bought elbows. the tricky part is getting the angles right on the tailpipes and tips once the muffler is installed. Definitely a 2 man job. 1 to measure, hold the pies and weld, and another to stand about 5 feet back right before tacking the joints to eyeball if everything looks symmetrical. |