Was wondering about a resonator delete.

SouthArk370Z

All a resonator does is, well, resonate. It does not affect emissions. As a rule-of-thumb, any mods downstream of the catalytic converter are OK. But you need to check local laws to make sure.

As far as warranties; what kind of warranty do you have on a 2009 model vehicle?

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BaysickAF

Bought the car used from a Audi dealership for $13k and they threw in the Audi platinum warranty for 5 years on top for free.

I was just thinking of throwing in the axleback and call it a day. Don't want it to be too loud, my street already has the police coming every now and then since there is quite a few nice cars on the street (corvettes, a few camaros, a S class).

kevingalls

Like @SouthArk370Z said. If you have cat-back only and left headers and cats alone then you’ll be fine. Resonator delete just adds noise. Personally, I run long-tube headers and full non-resonated, no-cat exhaust from Fast Intentions and it’s loud and smells like fuel but I still pass emissions test in GA due to the sensors location. This will depend by exhaust and state emissions. I wouldn’t try this in California.


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