hey all i have my hands on a cat back red back system but ive been told that the pacemakers are better, what sound i do? i was gonna get the extractors from pacemaker either way wot cat back system should i run

I've never heard of a pacemaker cat back system.

As far as I know.......
Pacemaker make headers / extractors
Redback make cat back pipes and mufflers

*edit* Are you asking if it's better to fit extractors or upgrade the factory exhaust??
If so, I'm going to say you would get better bang for your buck from upgrading the cat back exhaust to 2.5" mendrel bent piping with a straight thru design muffler.

apperently there is 1 going round now maybe dnt hold me too it

not according to their website:
www.pacemaker.com.au

If you've already got a redback system, just get it fitted - I wouldn't worry about whether it's better or worse than a product that might not even exist.

i stand corrected