Engine mods help

[ExTrEmE~R/C]

Hey guys maybe you can help me out! Do any of you know of any engine upgrades for a GS15 R engine that powers the Kyosho Mega Force. Some things i am looking for are diff piston or cylinder or maybe a sleeve for the cyclinder that could make the engine a .16 or greater?? Any Ideas

[trxrustler11121]

I do not think they can do that on account of the block splitting from lack of support usually provided by the sleeve (wow that sounded very intelligent) But I am pretty sure there are some upgrade heads and such for it. Also new headers and pipes to boost performance.