reducing engine noise

[E46m3zcp]

Hey,

I installed a set of megan catless headers on my track m3 that already had a magnaflow catback. I'm looking to go to an event at a track that has sound restrictions (92 dB fly by measured from random points) and currently, I'm afraid I would get banned. A friend suggests I replace the box in the Magnaflow system with ar20 resonators.

Anybody has had the same problem, and how did you solve it?

current engine sound (I like it, but its loud)

https://youtube.com/shorts/9qfrfXb4_Co?is=Dpbpp_00C9ESjNOc

[AWE46M3]

I bought the magnaflow catback when my first got my car. That exhaust sounds incredible (and the tips look great out the back) but the drone was unbearable. I truly hated driving the car, especially on the freeway. I'm sure it sounds much louder to you in the car than it actually is outside.

Back to the topic at hand:

I'd install a resonator in the section 2 (the biggest one that will fit - I think Borla makes a great option) similar to how Super Sprint has a resonator after the H pipe (or x pipe in your case).

[01SG]

I've often seen people get those exhaust pipes that point toward the ground to pass sound restrictions. Not sure if they are easily added or an entire muffler that is specially made, but perhaps worth looking into.

[Sharocks]

Get Vibrant Ultra Quiet resonators installed.

Should bring it down a bit.

[E46m3zcp]

Can anyone tell what the "box" on section 1 of the Magnaflow is? Is it a double resonator?