Wanted Centre mufflers for 2+0

Hi everyone, looking for a centre muffler setup for a 2+0 like this, 2.5inch size. The drone is starting to get a bit much these days. Just looking for something to quiet the drone down a bit before I build a new complete system. I'm located Brisbane.
What would something like this be worth?

Thanks

 

Hi everyone, still chasing these centre section mufflers.

Thanks

 

An X-pipe muffler will reduce the drone more.

https://rgsperformance.au/collections/exhaust-intake/products/magnaflow-muffler-x-pipe-for-z32-300zx