The silicone compound used in the construction of this hose is of the highest sheer strength available and is hand-laid with a polyester reinforcement fabric. The layering of the hoses is far more uniform and consistent than of that from any other manufacturer which improves the overall structural integrity of the hoses up to 50%. The factory "flexed" hose creates delayed throttle response and pressure drop, and is not rigid enough to prevent flex during high boost situations where getting airflow to the motor is most important.