When the Jeep Wrangler JK rolled off the assembly line in Toledo, Ohio, it came equipped with some great features. Its engine is powerful, the suspension system is top notch, and it has a set of performance grade tires. What it doesn’t have is an exhaust system designed for the rugged terrain that many jeeps are driven over during their lifetime. Installing a good aftermarket exhaust system on your Jeep Wrangler JK is one of the smartest upgrades that you can do. In this review we will examine five of the best exhaust system upgrades for the Jeep Wrangler JK.

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Best Exhaust System for Jeep Wrangler JK – Top Picks:

MagnaFlow 15160Flowmaster 817674aFe Power 49-48055Borla 11834CORSA 24412
OEM Part Number1516081767449-4805511834CBE-NTT07-56L
Model Years2007-20182007-20182007-20152012-20182007-2018
Engine TypeV6 3.6L, V6 3.8LV6 3.6L, V6 3.8LV6 3.6L, V6 3.8LV6 3.6LV6 3.6L, V6 3.8L
Item Weight (pounds)3529.8303532.9
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These are some of the features that are important when you are deciding which exhaust system is best for your Wrangler JK.

Type and Strength of Materials – The types of steel used in exhaust systems are not all of the same quality. There is durable and corrosion resistant 409 Stainless steel, even more durable 304 stainless steel, and aluminized steel, which is a lighter grade of steel that has been hot-dipped in an aluminum-silicon coating to give the steel better protection against corrosion.Best Exhaust System for Type and Strength of Materials: MagnaFlow 15160 Street Series Performance Exhaust System

Horsepower Increase – Aftermarket systems are designed to allow freer flowing exhaust gases than the factory installed systems. They generally have larger diameter pipes and smoother bends, relieving exhaust gas back pressure. When the engine can breathe better, it will deliver more horsepower and torque.Best Exhaust System for Horsepower Increase: CORSA 24412 Axle-Back Exhaust System

Increase In Fuel Economy – Installing an aftermarket exhaust system decreases the load on the engine caused by the exhaust gases. In doing so the engine becomes more efficient and it will burn less fuel per mile.Best Exhaust System for Increase In Fuel Economy: CORSA 24412 Axle-Back Exhaust System

More or Better Sound – The growling or roaring sound of the engine when you step on the gas improves with an aftermarket exhaust system. Although increased sound does nothing for the performance of your Jeep, it can be very satisfying for the auto enthusiast.Best Exhaust System for More or Better Sound: MagnaFlow 15160 Street Series Performance Exhaust System

Exhaust System Reviews

MagnaFlow 15160 Street Series Performance Exhaust System

MagnaFlow 15160

Where other companies use 409 stainless steel, the designers at MagnaFlow construct their Street Series exhaust systems of 304 stainless steel, making this system a poplar choice from a recognized industry leader. This Street Series system increases a sound that is deep, without becoming obnoxious to passengers and drivers inside the vehicle. That said, the sound will increase in magnitude as the mileage on the system passes the 500-mile mark.

The system has a black-coated finish that looks good on any color vehicle. The 2.5-inch, 304 stainless steel pipes are highly resistant to rust and corrosion. Installation of the system is fairly simple.



Flowmaster 817674 American Thunder 409S Cat-Back Exhaust System

Flowmaster 817674

Due to this system’s patented Laminar Flow technology, it is very efficient at moving exhaust gases through the 2.5-inch pipes and out of the vehicle. As a result, you can expect improved performance and increased fuel economy. It will fit 2 and 4-door Wrangler models with either a 3.6L or a 3.8L V6 engine.

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The tailpipe on the American Thunder exhaust is located higher than many other systems, improving ground clearance, making it better for any off road adventuring. The 3-inch tip is polished stainless steel. Engine sounds are of a slightly higher pitch than some Jeep owners may be happy with.