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Own the same car here in Malaysia. I go for BM3 Stage 1 and China Intercooler. Due to crappy fuel here, I'm working with Halim from PTF to resolve an issue I have on boost pressure pre throttle being too high around 30 psi using stock Octane 91 Stage 1 map. So far the custom test map he created for me seems to bring that down to around 23 psi which is good. I can vouch for the support from BM3 is really responsive. Go for it. Note that changing all aluminium big intercooler have a side effect that during low speed or stop at traffic light, the intake air temperature might be higher than stock intercooler. I believe it's due to our hot climate here plus the heat in the engine bay absorb by the intercooler when stop or during low speed. Once I drive more than 80 km/h, then only the intake temp is lower than stock intercooler.
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