Graz, Austria and Plymouth, MI – AVL, an engine instrumentation and test systems company, has acquired Pierburg Instruments and a majority interest in Pierburg Instruments GmbH. Pierburg develops and sells emissions and fuel measurement systems, with revenue totaling $34 million in 2001. Each company will retain its respective brand and continue to market, produce and develop its own product lines. AVL CEO Helmut List stated “We will achieve an outstanding combination of expertise in the areas of emissions and fuel measurement systems.”