Welcome back guys, today we publish this small Upgrade dedicated to the OnRoad GP9R23 and 24 engines. We have created this “Extender” Kit, consisting of a 4mm ergal spacer and 4 quality M3x22 screws (Bossard), to be applied between the head and innerhead to ensure that the cooling head in these very hot months is 4 mm more out of the body.

Tested in this super hot weekend in Leno by our team drivers we obtained on average a lowering of the engine temperature of 7/8 degrees.

A small modification for our GP9R23/24 engines in these summer months within everyone’s reach!!

of course it’s useful also for the new PISTA Engine