The MagnaFlow 19388 is a Street Series axle-back system for the 3.6L V6 Jeep Wrangler JL, built from durable stainless steel and built using CNC precision robotic manufacturing techniques. The manufacturer says extensive dyno testing is used to ensure that this axle-back exhaust system increases engine power and performance, though no power figures are published. Owners on user forums describe a deeper tone that stays quiet at cruising speed, and one reports the black tips survived repeated off-road impacts that would have destroyed stock tips. Compared with cheaper bolt-ons, the case for this kit is its stainless construction and its limited lifetime construction warranty and 1 year finish warranty.
Fitment deserves a close look before you order. Owners on user forums report that the inlet can be too small to slide over some JL factory pipes, and the workaround they describe is flaring the inlet or tack welding it in place. The manufacturer's year coverage for this part number has been stated inconsistently, so confirm your model year against the current application. Install is a clamp-on swap, and the manufacturer lists hangers included, clamps included, mounting bracket not included. Searchers looking for a 2018+ JL 3.6L axle-back exhaust, a MagnaFlow 19388 Street Series dual black tip, or a drone-conscious JL V6 cat-back alternative will find this system fits that brief.
Owners on user forums report that some JL inlets are too narrow to slide onto the factory pipe as delivered. The fix they describe is flaring the MagnaFlow inlet before install, or having a shop tack weld the joint.
The manufacturer lists hangers and clamps as included. It does not include a mounting bracket or a gasket.
The manufacturer states that the system is made in the USA.
Owners on user forums describe a clamp-on swap that goes faster when you remove the hanger brackets with the stock muffler, then transfer the hanger bushings to the new system. Expect time variation: one owner reported about 30 minutes to remove the stock muffler, then about four hours of sizing and fitting. A hanger removal tool is commonly recommended by owners for the rubber insulators. MagnaFlow's published Jeep instructions for other systems recommend professional installation, leave at least 1/2 inch of clearance from body panels, and call for band clamps tightened to roughly 40 ft-lbs. Recheck all fasteners after 25 to 50 miles.
