JDM dc5r retainers vs aftermarket

[X8TEENX]

hi, i m after a set of TODA spec C cams+ valve and willing to rev till 9000 RPM, i have been told to get a set of after market retainers since it's too weak for AUDM dc5r's retainers. but i found JDM dc5r can rev over 9000 RPM wif simply plug an aftermarket ECU in, so i wan to ask whether i can get a set of JDM dc5r retainers or a set of aftermarket titanium retainers and the price compared to each others

[X8TEENX]

i have been told to get a set of JDM dc5R retainers which can rev over 9000RPM wif Mugen N1 ECU (9200 redline), hope this can help :d