LOS ANGELES, Tues., Jan. 25, 2011 – A leader in innovative performance exhaust technologies, DynoMax® Performance Exhaust has added the revolutionary, drone-free DynoMax® VT™ high-performance muffler to 13 performance cat-back and axle-back systems covering a variety of late-model truck, Jeep and muscle car applications.

DynoMax Performance Exhaust products are manufactured and marketed by Tenneco Inc. (NYSE: TEN). DynoMax is one of North America’s leading brands of dyno-proven exhaust technologies for muscle cars, diesel and gas trucks and sport utility vehicles, and sport compact/European cars. The new systems will be available late spring at performance retailers nationwide.

“As soon as we released the drone-free DynoMax VT muffler, enthusiasts began asking for bolt-on, easy-to-install cat-backs and axle-backs with the VT muffler,” said Joe Pase, director, performance products, Tenneco. “There’s just nothing like the DynoMax VT muffler on the market today, and now, it’s available in some high-flow, performance kits for a variety of models.”

The new DynoMax VT muffler systems include:

• 2011 Ford F-150 5.0L (38450)
• 2009-11 Chevrolet Colorado/GMC Canyon 5.3L (p/n 38501)
• 2009-10 Chevrolet Silverado/GMC Sierra 1500
• (regular cab, 38497; crew cab/extended cab, 38495)
• 2010-11 Chevrolet Camaro 3.6L V6 (38493)
• 2010-11 Chevrolet Camaro SS 6.2L V8 (38494)
• 2009-10 Ford F-150 (38486)
• 2008-10 Ford F-250/F-350 SD V8 (38469)
• 2007-08 Chevrolet Silverado/GMC Sierra 1500 (crew cab/extended cab, 38454; extended cab, 38453)
• 2005-08 Ford F-150 (38450)
• 2003-09 Dodge Ram 2500/3500 5.7L/8.0L (38397)
• 1999-2007 Chevrolet Silverado/GMC Sierra 1500 (38311)

The new DynoMax VT systems will include the 100-percent welded VT muffler, an innovative, high-flow stainless steel performance design that controls irritating drone while ensuring maximum performance.

Built around the exclusive, precisely calibrated patented internal valve, the muffler also includes slotted bushing ends; exclusive Continuous Roving Fiberglass (CRF) technology that absorbs additional unwanted interior resonance and allows for a rich, deep performance tone; and a show-stopping DynoMax VT logo-embossed body and high-impact micro-finish.

The DynoMax muffler’s proven performance advantage also can be seen in recent flow-bench testing of the DynoMax VT (No. 17956), MagnaFlow (No. 11226), and Flowmaster (No. 42541) products. The DynoMax VT muffler delivered 841 cubic-feet-per-minute flow, compared to 588 CFM for the MagnaFlow and 373 CFM for the Flowmaster.1

The muffler – engineered to deliver the DynoMax’s trademark “Drone-Free Performance™” – offers the flow characteristics of the legendary DynoMax Ultra Flo® Welded muffler, through a straight-through unrestricted design that is dyno-proven to support up to 2,000 CFM and 2,000 horsepower.

Each system includes application-specific piping, hangers, and other hardware plus handy, instructive installation guides for a fast and easy install.

The new systems are covered by a limited lifetime warranty and exclusive 90-day Performance and Sound Guarantee, an offer that lets enthusiasts try the system for 90 days. Consumers can return the product within 90 days for a full refund of its purchase price. Additional restrictions apply and can be found at www.DynoMax.com.

For more information about the DynoMax VT systems and technology, please visit www.DynoMax.com, contact your nearest DynoMax supplier or call 1-734-384-7806. For the name and location of your nearest DynoMax retailer, check out the Dealer Locator at www.DynoMax.com.

Tenneco is a $4.6 billion global manufacturing company with headquarters in Lake Forest, Illinois and approximately 21,000 employees worldwide. Tenneco is one of the world’s largest designers, manufacturers and marketers of emission control and ride control products and systems for the automotive original equipment market and the aftermarket. Tenneco markets its products principally under the Monroe®, Walker®, Rancho®, DynoMax®, Thrush®, Gillet™ and Clevite® Elastomer brand names.

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1 Test conducted on 14-in. body with 2 1/2-in. offset/center configuration.