Vortex conquers the European OKJ title in Zuera Vortex conquers the European OKJ title in Zuera Bas Kaligis / Wednesday, July 28, 2021 0 727 Article rating: No rating On the Spanish track, the DJT engine, with Freddie Slater and Ean Eyckmans, signs a double win in the final of the OKJ class and becomes the 2021 Champion of the FIA Karting European Championship. Podium also in the OK class. Read more