Tenneco Inc.'s DynoMax Performance Exhaust has added coverage of 2014 Chevrolet Silverado and GMC Sierra 1500 trucks through a new drone-free performance DynoMax VT system. The system will be available Jan. 1 at performance retailers throughout North America.

The new DynoMax 2014 Chevy Silverado/GMC Sierra 1500 8-cylinder/5.3L engine (p/n 38531) performance exhaust kit includes a 25-inch DynoMax VT muffler.

This muffler features a calibrated internal valve that provides a drone-free driving experience. The VT muffler design also includes slotted bushing ends. Continuous Roving Fiberglass (CRF) technology to absorb unwanted interior resonance. and an embossed body and high-impact micro-finish.

The latest single cat-back system includes 3-inch mandrel-bent, stainless steel tubing for additional durability and loss-free exhaust flow and a stainless steel slant cut tip.

The new system fits 143.5-inch and 153-inch wheel bases. Every DynoMax system includes detailed installation instructions and all of the necessary hangers, brackets and accessories for installation.

The new DynoMax Silverado/Sierra systems are covered by a DynoMax brand limited lifetime warranty and an exclusive 90-Day Performance & Sound Guarantee. Please visit http://www.dynomax.com/warranty-guarantee/ for additional details and restrictions.

For more information about the exhaust system please visit www.DynoMax.com.