Photo is representative, may not be actual part number
Probe FPS Forged Pistons are designed for heavy duty (towing, etc.) or high performance street car, trucks, marine and some racing applications. FPS pistons are far stronger than hypereutectic cast pistons. May be used with boost and nitrous oxide.
PROBE Industries Forged Pistons - The Fastest, Most Powerful Pistons For the Money! Since 1987 Probe Industries has manufactured a wide variety of products ranging from lightweight billet rockers to forged pistons. Probe Industries is continually striving for excellence in offering a large selection of products to racers and automotive enthusiasts. Today, Probe forged pistons are a result of many years of technological advances in both forging and machine tool technology.