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Stage II is Stage I, Dyno adjustment in combination with a camshaft and pushrods. A Twin Cam recovers nicely from other camshafts and the weak cage bearings in the crankcase are also replaced.  

Depending on your driving style, you can choose a camshaft with a lot of power at the bottom, or a camshaft with more top power and less power at the bottom (torque).  

You can choose chain or sprocket drive. Gears are recommended for older models with mechanical tensioners, but not for models after 2007 with hydraulic tensioners.  

You get a stick, a Dyno adjustment, an S&S easy start camshaft with Timken stronger bearing and a set of adjustable pushrods, with black or chrome sleeves.

Injection models: The costs are from 2750 euros including the Diag4bike stick.

(including assembly and adjustment and dyno proof)

Carburettor models: The costs are from 2400 euros.

(Includes mounting and adjustment and dyno proof.) This is without the possibility to adjust the ignition. This costs around 400 euros more.  

Pay attention ! All Twin Cams from 1999-2004 have 551 or . when installed  a higher number requires different valve springs in the heads. This costs 600 euros extra incl. mounting and gaskets.

For more explanation click here  

For Twin Cam models it is advisable to take the easy start camshafts. Read here for the explanation.  ​

Various additional changes are possible, a better oil pump or cam support plate, other Tappets, etc. can always be discussed.

Of course it is also possible with a Thundermax computer instead of Diag4bike, for 800 euros more.

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