Dramatically reduces cavitation and prop spin on Sea-Doo Spark models. Location specific, molded inserts fill the voids in intake grate shoe that can bleed air into pump causing cavitation. Allows for a positive seal for maximum performance. Recommended for modified craft using aftermarket RIVA Intake Grate. Includes detailed installation instructions. Applications: All Spark 2-Up & 3-Up models with RIVA Top Loader Intake Grate

NOTE: Works with RIVA Top-Loader Intake Grate only (part#RS22130)