Check the listing for details. 08+ YAMAHA WAVERUNNER GP1800 FX SHO SVHO FZR FZS INTERCOOLER KIT BLOW OFF VALVE. Condition: New. Listed at 599.99 USD. Yamaha FZR FZS GP1800 FX-SHO FX-SVHO Intercooler Kit with Blow Off Valve Includes a 50mm blow off valve Typical top speed gains of 2+ MPH over OEM Yamaha SHO or SVHO intercooler Typical peak RPM gains 200+, acceleration and throttle response Kit Contents: The intercooler with blow-off valve flange, blow off valve, full piping kit, mounting bracket system Fits all supercharged Yamaha watercraft 2008 to present, including FZR, FZS, GP1800, FX SHO and SVHO models and supercharged Yamaha Jet BoatsYamaha FZR FZS GP1800 FX-SHO FX-SVHO Intercooler Kit with Blow Off Valve Includes a 50mm blow off valve Typical top speed gains of 2+ MPH over OEM Yamaha SHO or SVHO intercooler Typical peak RPM gains 200+, acceleration and throttle response Kit Contents: The intercooler with blow-off valve flange, blow off valve, full piping kit, mounting bracket system Fits all supercharged Yamaha watercraft 2008 to present, including FZR, FZS, GP1800, FX SHO and SVHO models and supercharged Yamaha Jet Boats