Hi everybody, here is the results of the last modification, which is a titanium silencer from Arrows and it's relative injection set up
65,7 hp at the rear wheel, not bad 
, next step is the camshaft which will give me an extra 4 to 5 hp , test as been made with 33 degrees and low pressure in the dyno room , which means a 2 or 3 hp less 
here are the first results , 63 cv at rear wheel 
mods are : new injection whit twin injectors , 12.3 / 1 comp ratio , stock silencers
next step is special made titanium silencers, and camshaft in september
more pics to come
for those who are interested all the 690 have the same camshaft (cam 07) which as very low overlap , the cam is not tunable is made in one piece including the sprocket
