soooo on my gsr every one that takes a look at my motor always says to take the other set of butterflys out and ill gain some more emuff out of it.Is this even worth my time to do or would it be best to leave it alone i dont mine some extra emuff for no cash at all

 

you lose mid-range without them.

and what the hell is emuff?

 

ehhh nm lol it is my dd so id better leave alone