2.5 vs 3.0 exhaust for ZD30, opinions.

[MEGOMONSTER]

Hi guys, just picked up a GU with a ZD30, and I'm looking at putting a new exhaust on. I mainly use the car for towing. Was curious as to people's opinions on a 3" system over a 2.5", as in is the extra cost of a 3" worth the extra performance?

Cheers.

I went with a 3" Taipan exhaust. Reason why I chose this system is cos there is no loud droning at speed. It's said to be only 5dB louder than stock. Much better performance but minimal.
If you do a search on exhaust you should find heaps of info to read through.
I do remember reading on a few threads the the Beaudesert 2.75" exhaust is sufficient.