Group K has been building Race and Recreational Watercraft since 1986. Our Professional Aftermarket High Performance Shop specializes in Engine Modification Kits for Yamaha • Sea Doo • Kawasaki • Polaris • Tigershark Personal Watercraft.
Resto-Mod Formula
Kawasaki 650SX
Racing Modifications
Kawasaki SXI Pro 750
Resto-Mod Build-Up
Sea Doo HX “Shredder”
Resto-Mod Formula
Sea Doo GSX 785
Resto-Mod Build-Up
Yamaha Super Jet
Kawasaki SXR 800/SXI 750
849cc Big Bore Sleeper Kits
Yamaha GPR/XLL/XLT 1390
Big Bore "The Most Powerful 87 Octane PWC Anywhere!" • "The RXP Killer"
Yamaha Super Jet 845cc
Big Bore "Hammer" Sleeper Kits
