Squeezing more performance out of your Wrangler's 4.0L I6 engine is easier than you think, and a good place to start is with your vehicle's exhaust system. For some reason, auto manufacturers ...

If you own a Jeep with a 4.0L engine, chances are pretty good that you either have, or will have, a cracked exhaust manifold. Oft-cited causes range from bad motor mounts to poor factoryprocesses.

Jeep has recently revealed the most powerful version of an already very capable Wrangler, the 392, a V8 Hemi-powered off-road monster that is complemented by an all-new active dual exhaust system. The ...