Honestly a cheap kit will do the same job as a jap brand or plazaman kit.
The only difference is the quality in there pipe works and silicon clamps.
If you dont want a cheap kit, then get your self a nice ARC, HKS or Blitz kit.
No experiences with plazaman kits, but i think the price is way to high.
I know plenty of people with cheap kits with excess of 260kw and it handles fine.