what do you think about that :

http://motors.search.ebay.com/_W0QQg...sortpropertyZ1

I know it's probable not the "ultimate mod" but maybe it can change the sound a little bit on the happy side?

just removing the spark arrestor sound like crap what do you think about this replacement end cap

do we should care about the back pressure , do we need to rejet the carb if you install this mod

just wandering ?

thank's in advance

p.s. still a bit expensive but look god !