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aFe Power MACH Force XP 2.5-Inch After-Cat Exhaust System for 2007-2016 Jeep Wrangler

(Don’t Get) Exhausted

Tyler AdamsPhotographer, Writer

With over four years of abuse lavished on our 2012 Jeep Wrangler Unlimited Rubicon, the mucho grande factory tailpipe hanging under the rear bumper of our JK has become a punching bag of sorts. Nacho Libre style! Drop off a 2-foot ledge in Moab and boom! Another dent and smooshed exhaust tip. Pivot off a boulder on the Rubicon trail and bang! The factory exhaust tip pinches closed, severely restricting air flow. Out comes the crowbar to open up the crushed tip for a quick trail fix.

With the writing on the wall, it was time to replace our damaged factory exhaust system with one designed to withstand the rigors of off-roading. We struck a knockout with the Advanced Flow Engineering (aFe) direct bolt-on replacement, axle-back exhaust system for the 2007-2016 Jeep Wrangler. The same unit fits both the 3.8L and 3.6L V-6 models. No more smack-downs on the mat!

The aFe system cleanly tucks the muffler a few inches up and out of the way from trail obstacles, and the end tip sits level with the horizontal plane of the rear bumper. We threw a few gnarly trails at the aFe system during the 2016 Moab Easter Jeep Safari and made it out unscathed, with room to spare. Constructed of 2 1/2-inch mandrel-bent 409 stainless steel tubing, the aFe MACH Force XP muffler with Hi-Tuck tip gives our JK much needed departure clearance over ledges and drops. Bonus: a freer-flowing muffler with a healthy exhaust note at full throttle. But the aFe system is not much louder than stock at idle, and it emits near-stock decibel levels at highway speeds and during part-throttle cruising. Especially in the dreaded drone-zone in JKs, between 2,000-2,500 rpm and travelling between 65-80 mph, noise levels are slightly elevated but not uncomfortable. Follow along as we install aFe Power’s bolt-on exhaust system replacement for 2007-2016 Jeep Wranglers.

After four years of ledge drops and boulder pivots, the constant abuse to the factory exhaust on our JK is quite evident in this image. On each trip home from an off-roading adventure we would have to break out the circular saw and buzz off a few inches of the damaged end to let it breathe again.

The joints on the factory muffler and midpipe were fused together over the years, so we had to cut it off to remove and replace. The factory midpipe was also pretty beat up from belly rubbing, so we ordered up a new one from our local Mopar parts dealer.

Out with the old! The factory vacuum cleaner–sized muffler acts like a punching bag on the tail of our JK. The install technician, Scott, wrestled the canister from its mounts and then pitched it into the recycle bin.

In with the new! The new Mopar JK midpipe and aFe MACH Force XP muffler with Hi-Tuck tip easily bolted up to the factory mounts.

Another tech, Mike, installed the muffler inlet, which sits between the factor midpipe and the aFe muffler. All of the factory mounts are retained, and the inlet cleared the axle and rear sway bar with ease.

Proof is in the pudding! This system is truly a piece of art. Not only does the aFe MACH Force XP bolt up in the factory location, but it is more compact, more efficient, emits near-factory sound levels, and is tucked up and away from obstacles.