ok so on my 85 or 84 yfm 200 the muffler is still stock but it doesnt have a baffel and it may have other problems. So it sounds like its a straight pipe and i mean this thing is loud... thats all good right i love itt but im movin up to a yz 125 and my sister wants to ride only if i fix it and i cant find a stock like my dad wants so could i put a baffle on it and muffler repacking or do i have to buy a new system and what system do u suggest that will fit it