whats a cherry bomb ??

 

I only know it as a car muffler that in no way muffels the noise comming out the exhaust...basically a legal straitpipe with a little glasspacking inside

 

my brother got one from yosh for his r-450, it cost 30 dollors and allows him to take his baffle out and put on a high flow airfilter, it changes the efi so the quad doesn't run lean. also says it gives the quad 7 hp.

 

It also blows up if you light the fuse.