can anyone recommend a shop i can take my st185 gt4 for some mods in sydney ?

[st185-gt4]

hi,

I've been thinking about doing some mods to my st185 gt4 and get some more power out of it. right now i wanna install my downpipe with a bigger turbo and put in a 3inch exhaust all the way . i also have a EMS 4424 stinger ecu which i wanna have installed in the future and have it tuned to get the most out of it . i feel like the way the car is running right now is below standard to say the very least and want to be able to make it move the way i want it to. can anyone out there recommend anyone in the sydney area preferrably western sydney i can take my car too that has a good sense of knowledge when it comes to gt4's with peace of mind they know what they're doing ?

here are some pics:
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