Hello Guys! I own a German Sinnis Apache 125, a SFM Sachs ZZ 125... is there a bigger bigborekit than the 150? im not afraid to split the case... i just want to go "crazy" since the sinnis has a bad reputation in Germany due to low power and poor reliability, and i want to prove them that they are wrong! Is there a way to get more than 15hp out of it? It doenst needs to be legal.

My Sinnis already has well over 50k km on it too, i use it for touring and i love it.IMG_20171208_175559_438.jpg