Westport Innovations Inc. Prices Offering of Common Shares

published: November 9, 2010

VANCOUVER, BC — Westport Innovations Inc. (TSX:WPT / NASDAQ:WPRT) announced today the pricing of its offering of common shares in the United States and Canada.  Westport will offer 6,050,000 common shares at a price of US$17.50 per share, for gross proceeds of US$105,875,000.  Westport has granted the underwriters of the offering an option to purchase an additional 907,500 common shares at the offering price during the period ending 30 days from the date of Westport’s final prospectus supplement filed in connection with the offering to cover over-allotments, if any.  If the over-allotment option is exercised in full, gross proceeds of the offering will be US$121,756,250.

Morgan Stanley & Co. Incorporated and J.P. Morgan Securities LLC are the joint bookrunners for the offering.  Other underwriters include Lazard Capital Markets LLC, Craig-Hallum Capital Group LLC and Northland Capital Markets in the United States, as well as Morgan Stanley Canada Limited and J.P. Morgan Securities Canada Inc. in Canada.  The common shares issued under the offering will be listed on The NASDAQ Global Market.  Westport has made an application to list the common shares issued under the offering on the Toronto Stock Exchange, which listing will be subject to fulfillment of all of the listing requirements of the exchange.  The offering is expected to close on or about November 15, 2010, subject to customary conditions.

The offering is being made only by means of Westport’s final prospectus supplement and accompanying short form base shelf prospectus.  Copies of the United States final prospectus supplement, when available, may be obtained from: Morgan Stanley & Co. Incorporated, Prospectus Department, at 180 Varick Street, 2nd Floor, New York, NY 10014, and by phone at (866) 718-1649 or by emailing prospectus@morganstanley.com; or J.P. Morgan Securities LLC, c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, and by phone at (631) 254-1735 or (866)-803-9204.

Copies of the Canadian final prospectus supplement, when available, may be obtained from Morgan Stanley Canada Limited, at 181 Bay Street, Suite 3700, Toronto, Ontario M5J 2T3, and by phone at (416) 943-8567; or J.P. Morgan Securities Canada Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, and by phone at (631) 254-1735 or (866)-803-9204.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of the common shares of Westport in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.

About Westport

Westport, a division of Westport Fuel Systems Inc., engineers the world’s most advanced natural gas engines and vehicles. We work with original equipment manufacturers worldwide from design through to production, creating products to meet the growing demand for vehicle technology that will reduce both emissions and fuel costs. To learn more about our business, visit www.westport.com, subscribe to our RSS feed, or follow us on Twitter @WestportDotCom

Cautionary Note Regarding Forward Looking Statements

This document contains forward-looking statements, including statements regarding the demand for our products, the future success of our business and technology strategies, investment, cash and capital requirements, intentions of partners and potential customers, the performance and competitiveness of our products and expansion of product coverage, future market opportunities, speed of adoption of natural gas for transportation, growth in demand as a result of new emission standards and terms of future agreements. These statements are neither promises nor guarantees, but involve known and unknown risks and uncertainties and are based on assumptions that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activities, performance or achievements expressed in or implied by these forward looking statements. These risks and assumptions include risks and assumptions related to our revenue growth, operating results, industry and products, the general economy, conditions of and access to the capital and debt markets, governmental policies and regulation, technology innovations, fluctuations in foreign exchange rates, global government stimulus packages, the acceptance of natural gas vehicles in fleet markets, the relaxation or waiver of fuel emission standards, the inability of fleets to access capital or government funding to purchase natural gas vehicles, the sufficiency of bio methane for use in our vehicles, the development of competing technologies as well as other risk factors and assumptions that may affect our actual results, performance or achievements or financial position discussed in our most recent Annual Information Form and other filings with securities regulators. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date they were made. We disclaim any obligation to publicly update or revise such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward looking statements except as required by National Instrument 51-102.

More Information

Westport Fuel Systems
(Investor Inquiries)

Caroline Sawamoto

Manager, Investor Relations

T 604-718-2046

invest@wfsinc.com

www.wfsinc.com

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