CP-Carrillo’s new Top Fuel Forging, the “TF-X” is the first forged side relief (FSR) piston offered for the Top Fuel segment. Derived from the ultra-successful and popular CP-Carrillo Blown Alcohol FSR forging the “TA-X” , the “TF-X” has been proven throughout 1 ½ years of rigorous R&D and testing during National Event competition to be lighter, stronger, and more stable than any other offering. It exhibits less crown deflection, less skirt collapse, and better ring seal than any other Top Fuel forging ever produced. The application of the “TF-X” FSR concept in conjunction with our proven clearances have created the ultimate piston for Blown Nitro applications. These forgings are in stock and engines are setting records with TF-X pistons – call your sales tech today and get the best piston for the most demanding nitro engines in the world.