Solas srz-cd-13/18 Sea Doo impeller will improve performance over stock through out the power band 2+mph. Solas SRZ-CD-13/18a This upgrade over stock impeller fits Sea Doo RXT 215 2009-11, Wake Pro 215 09-up, GTX 215 09-up, GTX Is 215 09-up, GTX LTD 215 09-up.