Curtsey Exhaust too loud for me need advice

[Humberto Gonzalez]

Will,

I also have Courtesy Nissan's (TopSpeed) B13 exhaust paired up to a HS 3rd
gen header. I share your negative opinion of loudness and droaning that is
present with this combo. While I've learned to live with it, I know what I
would do first to quiet it down.

I'm sure you've noticed that the resonator on Courtesy's exhaust is quite
small, even smaller than the unit on the stock exhaust. I'd replace the
resonator on Courtesy's exhaust with the largest and longest resonator you
can find.

Just my 2 cents,
Humberto Gonzalez