Did anyone update the ANSA Exhaust?

I have the system since many years in my garage and I thought, I could maybee change the muffler and pipes to have more flow.

The problem is also, over 73dB is not legal here measured 7 meters away from the side. Pass by full throttle in 2 or 3 gear with 30 Miles around between 2500 and 3000 rpm.

I guess I would even need 2 mufflers or resonator/muffler in the midle to pass.

Thanks for your thoughts.

Marcel

And i tought we have tough traffic laws!