exhaust jetting

[elitz14]

do i need to ave my carb jetted if i ave a racing silencer on it with airbox lid on with just the back of the exhaust

 

[Awk08]

do i need to ave my carb jetted if i ave a racing silencer on it with airbox lid on with just the back of the exhaust

nope, silencers are just that, sound mufflers, or what may seem to be an amplifier in the case of an aftermarket one compared to a stock one

a plug chop will tell the tale though to be absolutely safe