What are some 2 stroke hop ups? Lets make a big list. Everyone has ideas and it will majorly benefit our pingers. What PARTS give 2 stroke more horsepower? Heres what I know. (Note, only for motor) Pipe/Silencer Reeds ICAT Power Now Yes, I know, pathetic. Thats why I posted it. Dont include engine work, like porting or anything. Just aftermarket performance parts that to some people are unknown.