Exhaust Question - Which Muffler/Resonator?

[1G90AWDTsi]

I have a new performance header, new flex pipe, new performance catalytic converter, and an "old" performance muffler. I need to replace the muffler now and I want something deep and NOT tinny in the upper RPMs.

Also, can someone explain why I would want or wouldn't want a resonator with my setup??

 

[fartz012]

resonators help cancel out certain frequencies of sound in the exhaust, but they create turbulence in the exhaust flow as well. IMO resonators and cat's are garbage...

 

[1gDSM4g63]

There would be no point in have a resonator if you're still using a cat. It's only going to further restrict the exhaust air flow.

 

[VelocitàPaola]

Resonators are mainly used to soften the exhaust note. If you live in an area where aftermarket exhausts themselves aren't illegal, but loud ones are, you might consider a resonator. Otherwise, ditch the idea -- they don't help performance-wise.

 

[jrohner]

I would recommend a resonator, especially on a non-turbo. Your 4g63 probably won't be as raspy & weed-eaterish as a Honda no matter what you do, but it's nice to make it sound as good as possible. BTW, this is the 420A section, which you are not if you have a 90 car.