MagnaFlow introduces its new 3-inch bolt-on exhaust system for ... MagnaFlow 3-Inch S197 Mustang Exhaust ... The Tru-X crossover pipe is 2.5 inches in diameter and built from stainless steel.

In an interesting twist,Engine Mastershost David Freiburger deduced that the three 409 stainless steel Magnaflow-style straight-through mufflers under $40 were so similar that they must've been ...