Magnaflow 15781 Cat Back Exhaust for Toyota 4Runner
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Magnaflow 15781 Cat Back Exhaust for Toyota 4Runner

The Magnaflow 15781 Cat Back exhaust system is a great choice for Toyota 4Runner owners looking for a little more horsepower. After installing this exhaust you could gain as much as 13 more horsepower and 15 ft. lbs of torque! Not bad for a bolt-on system.

SKU: magnaflow-15781 Category:


Unlike other Toyota 4Runner exhaust systems, the Magnaflow 15781 is constructed out of 409 stainless steel tubing. It also features dual exhaust tips with a polished finish to give you that aftermarket look.

Not only does a Magnaflow cat back exhaust look great, but it will improve your performance, too. In fact, when tested on the dyno this exhaust produced a 13 horsepower gain.

Sound Clip

Additional information



Exhaust Style

Magnaflow MF Series

Sound Level



Stainless Steel

Pipe Size


Exit Style

Dual, Side

Vehicle Year

2003, 2004, 2005, 2006, 2007, 2008, 2009

Truck Fitment

4Runner, Toyota


4.0L, 4.7L