The R&D FX SHO / FZR / FZS Power Core Intake Manifold and Intercooler CFM Kit was developed to increase airflow into and through the intake system by relieving restrictions. The R&D FX SHO / FZR / FZS intake manifold ribbon remover sleeve will unlock a 40 CFM (cubic feet per minute) air flow restriction by replacing the intake manifold ribbon with the R&D billet venturi sleeve. The R&D Intercooler Spacer will unlock a 30-35 CFM restriction in the intercooler. The R&D FX SHO / FZR / FZS Intake Kit will add low end and mid range throttle response, and a full 100 plus rpms to top end performance to a stock FX SHO / FZR / FZS . The R&D FX SHO / FZR / FZS Intake Kit is an absolute must have parts kit to remove intake restrictions before contemplating power adding compressor booster wheels or turbo charger kits to the Yamaha FX SHO / FZR / FZS engine. True horsepower gains on the Yamaha FX SHO / FZR / FZS start right here with the R&D Intake Kit. More airflow will equal more power, and there is no other way around the fact that restricted is restricted power.