The back half isn't going to solve drone. Put a resonator in the midpipe. Someone here had good results with the Borla universal and maybe Vibrant.

I have 2 resonators in my system, one in the mid (Megan) and a second in the mid-back (Remark). It is quite loud valve open and will set off the wife's car alarm on cold start. Normal driving in the valve closed region is drone free and easily un-noticeable.

 

Gotcha. Good to know.

 

Yup 2 resonators does the trick. I also have a resonator in my midpipe paired with a resonated center exit Remark exhaust. No drone

 

Out of curiosity, if you have the stock exhaust, would simply getting the center valve override (ability to manually control open/close) help a little with very little investment? I have a '25 and throwing it in ECO (valve close) cuts out a lot of drone at low speeds & red lights. (From my understanding the ECO mode & valve relation is not the same between 23/24 and 25)

 

Problem is that there is currently no standalone override that allows manual control of the valve.

There is the GRC Exhaust Buddy and HKS(?) valve eliminators that allow you to remove the valve actuator without triggering CEL. Of course you could then manually open or close the valve with some fabbed mechanical system, but that wouldn't be an on the fly adjustment.

The only exhaust I'm aware of that currently has electronic adjustment is the Fi valvetronic system.

 

Have an exhaust shop weld a resonator on the midpipe right behind the catalytic converter. Once I did that, drone was gone!

My first move was a HKS exhaust thinking the valve delete would help (also the description said quiet around town), but adding the resonator was the trick that did it

 

Thanks for the help!

 

I have almost zero drone with my lachute system

 

Does this include a midpipe, and if so is it resonated?

 

Ended up buying and installing the AWE touring exhaust and it sounds amazing! No drone, but everything is else is way louder (can be good or bad depending on location). 10/10 reccomend!