Anyone have ZX-14r Brock Exhaust on an Australian bike?

Hi,
I am literally days away from purchasing but a few flags have been nagging away at me and I need to know if anyone in Australia has purchased either the CT Single or Alien Head 2 for the 2012-14 ZX-14r and what their thoughts are? If there is anywhere that would know it would be here....
Alternatively, has anyone done an Australian Dyno shootout with the Exhaust availability on the market that they wish to share their thoughts and ideas around what is the best performance, lightest weight and value (perceived) in their travels?
I am struggling to justify titanium at this stage but I am concerned that brocks have only had teams race the stainless stuff which weighs more and is bigger (naturally).
Any thoughts greatly appreaciated.
thanks.
I am literally days away from purchasing but a few flags have been nagging away at me and I need to know if anyone in Australia has purchased either the CT Single or Alien Head 2 for the 2012-14 ZX-14r and what their thoughts are? If there is anywhere that would know it would be here....
Alternatively, has anyone done an Australian Dyno shootout with the Exhaust availability on the market that they wish to share their thoughts and ideas around what is the best performance, lightest weight and value (perceived) in their travels?
I am struggling to justify titanium at this stage but I am concerned that brocks have only had teams race the stainless stuff which weighs more and is bigger (naturally).
Any thoughts greatly appreaciated.
thanks.