Dano’s Performance 2017-23 Suzuki GSXR 1000 Ported cylinder head, Performance Camshaft Set, manual cam chain tensioner and Head Gasket. Dano’s Performance has developed this Superbike package for the 2017-23 GSXR 1000 model bikes. One of the best features of this package is that it is an all top end package in which only the cylinder head needs to be removed to install it. This is a complete ready to install package which includes everything shown including the cylinder head. Even the valve clearances have already been set so you can just install it on your engine and go fast!! The typical horsepower gain which will be achieved with our package is 24-26 HP (218-220 HP). The following is all that is included in our Superbike package. 1 Ported cylinder head which maximizes intake and exhaust air flow. 2 New valve stem seals. 3 Machined cylinder head base to raise compression. 4 Three angle valve job. 5 Performance Intake and exhaust camshaft set. 7 Custom velocity stacks. 8 Manual cam chain tensioner. 9 Heavy duty racing valve springs. This package includes everything shown in the pictures including the cylinder head and is ready to install on your engine.