Cherry bomb muffler -> ??

[250SX_rider]

Yesterday I was riding my SX, my cuz came with his Moto-4 and we were doing lil jumps then I looked at his muffler and I realized that it was a Cherry-bomb muffler !!! (for the noobs, it's a car muffler ;) ) and I was wondering if that muffler would increase the moto-4 performance...if so, should I put a cherry bomb on my SX ? :?

[NOS_350X]

it would basicaly be the same as running a straight pipe. the flow of exhaust itsnt enought to have any affect on the cherry bomb

[short4stuff]

So are you saying that it would mess up your engine.... Like there would be no back compression? ? ?

[NOS_350X]

on a 4stroke it dosent matter about the back pressure you just have to get the cold air off of the valves

[short4stuff]

so on a 4 stroke I would be fine to run a straight pipe?