well the length probally wouldnt matter, itd just probally be a deeper sound.
but you want to know the diamiter of the end of the pipe on the cherry bomb. and the diameter of ur tail pipe. so thats what youll want to know. it will work if:
it can be small enouph to fit in ur exhaust but not so small it will rattle around, then you could just bolt it in or use special tie type things.
or it can be big enouph to fit around the pipe. then you could do the same thing or you could weld it.
it could also be the same size as ur exhaust pipe then you probally have no option but to weld it.
im not sure what size this is, and what size ur exhaust is. so im not sure.
but for 15 bucks it looks real nice. there really simple little mufflers.