Unlike other vehicles the EGR does dick to the power band, helps with fuel economy and lowers combustion chamber temps a LOT. Running premium fuel doesn't do nearly as much as the EGR does to reduce detonation and knock. If you do run without it I recommend running a richer tune with a little less ignition advance... or a JDM ECU. It's not terribly likely it's going to kill things, but personally, I got sick of losing that kind of bet a long time ago.
A new oil pump would be BRILLIANT!
Standalone which uses the stock harness and electronics: AEM EMS
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