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PWG has a small turbo that fit the factory power output perfectly - so isn't it obvious that you need a bigger turbo for more power? I still don't see how you can be so surprised. Every single engine on the planet need a turbo upgrade for a significant power increase.
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M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost
(A Dane in China)  |