Company Receives Two 2004 PACE™ Honorable Mention Awards

LAKE FOREST, ILLINOIS, October 27, 2003 - Tenneco Automotive (NYSE: TEN) announced today that the company has received Honorable Mention Automotive News PACE Awards for its Exhaust Isolators and Tunable Muffler Shell technologies.

The 2004 Automotive News PACE Awards are jointly presented by Automotive News, Cap Gemini Ernst & Young and the Transportation Research Center Inc. The annual awards recognize creativity, excellence and innovation in the automotive supply industry.

"We are pleased that our technology focus is rewarded with recognition for our new Exhaust Isolators and Tunable Muffler Shell," said Mark P. Frissora, chairman and CEO, Tenneco Automotive. "These innovative technologies represent our commitment to developing products and technologies that help differentiate vehicles and satisfy customer needs - a key element in our growth strategy."

Exhaust Isolators offer a cost effective solution for achieving advanced performance. Unlike conventional isolators, these innovative products can be tuned both vertically and horizontally. Their unique design and use of elastomer materials also accommodates the lengthening of the exhaust system that occurs as temperatures increase. Moreover, these isolators integrate various components, including brackets and sleeves, into a single part, which permits easier assembly - an important consideration in high-volume production.

The Tunable Muffler Shell is designed to deliver the cost advantages and durability of single-wall muffler construction while providing the acoustical benefits of double-wall construction. The single-shell design avoids separation; a problem that can occur with double wall construction, and which results in unwanted noise and accelerated corrosion. The Tunable Muffler Shell is the first product to feature stiffening ridges in a wrapped construction. The stamped ridge pattern takes place prior to wrapping and eliminates the noise, vibration and harshness issues associated with single-shell muffler designs. In addition, by varying the pattern of embossed ridges, engineers can move resonant frequencies to non-critical zones.

The Exhaust Isolators were developed at the company's Milan, Ohio Engineering Center in collaboration with its Grass Lake, Michigan Emission Control Engineering Center. Production takes place at manufacturing plants in Milan and Napoleon, Ohio.

The Tunable Muffler Shell was developed at the company's North American Emission Control Engineering Center in Grass Lake, Michigan and is manufactured at the Marshall, Michigan plant.

Tenneco Automotive is a $3.5 billion manufacturing company with headquarters in Lake Forest, Illinois and approximately 19,600 employees worldwide. Tenneco Automotive is one of the world's largest producers and marketers of ride control and exhaust systems and products, which are sold under the Monroe® and Walker® global brand names. Among its products are Sensa-Trac® and Monroe Reflex® shocks and struts, Rancho® shock absorbers, Walker® Quiet-Flow® mufflers and DynoMax® performance exhaust products, and Monroe® Clevite® vibration control components.

CONTACT:
Tenneco Automotive, Media Relations
Jane Ostrander
(1) 847 482 5607
jane.ostrander@tenneco-automotive.com

Tenneco Automotive, Investor Relations
Leslie Hunziker
(1) 847 482 5042
leslie.hunziker@tenneco-automotive.com