if i add disc what will happen and if i get rid of disc what will happen bought pipe used no manual?

 

uh man i got the exhaust one or the other is for more low end and other for more top end only thing i know for shur is more you add more louder it is

 

the more discs.. the more air flow threw the pipe.. the less discs the more back pressure it has... if you dont want to jet it out take 3 or so discs out to help your engine.. i reccomend jetting it with air filter... is it full or slip on?