TurboWorks intercoolers feature excellent air flow. We guarantee very good durability and great cooling. They perfectly replace serial intercoolers, increasing the car's performance. Our intercoolers, as one of the few, have been tested above 10 bar. Intercooler dimensions: 780x300x100mm Core dimensions: 600x300x100mm Outer diameter of the input: 4 "(inches) TurboWorks intercoolers have an efficient COOL-TEC + polished core other cores have less frequently arranged ribs, which results in poor cooling, while COOL-TEC + cores are made of more densely arranged ribs, which guarantees a significant improvement in cooling. We guarantee very good durability and excellent cooling. They perfectly replace serial intercoolers, increasing the car's performance. Our intercoolers, as one of the few, have been tested above 10 bar. TurboWorks intercoolers have an efficient COOL-TEC + core, walls made of the best higher-quality polished aluminum. Other cores have less frequently arranged fins, which results in poor cooling, while COOL-TEC + cores are made of more densely arranged fins, which guarantees a significant improvement in cooling. The photo below shows how the new COOL-TEC + core is built. Dimensions: 780x300x76mm Core dimensions: 600x300x76mm Outer diameter of the entrance: 3 "(inch)