need a j3 chip specialist?

I have got my car fixed and have install the j3 chip. I would like to know if anyone on the gold coast can tune the chip for me. The revs are a little high. And I have lost that beautiful crackle sound from my exhaust. When I got the chip. I had a twin exhaust system. But recently I upgraded to high flow cats and a single exhaust system. Plus I have cleaned the throttle body and found I had to replace the maf sensor. Which in return fixed the rough idle. So it sounds like an 8 now and not a rotary.

So I guess I am looking for a falcon au s2 xr8 j3 mod chip expert to help me out that is the closest to the gold coast?