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Discussion Starter #1
hi guys I am new to the forum.Any how I recently upgraded to a sports filter and changed the spark plugs to denso u-grooves. Every since then the car has been penking around 3000 rpms. Any advice? Also I would like to know if a adjustable fuel pressure regulator can be applied to the vehicle?
 

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Surely a plug change to a "hotter grade" of plug is one possible cause for pinking or pre-ignition.
 

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describe the pinging more...
are you sure its not just the vvt your feeling working its so called magic? with increased flow you will feel it kick a little more..
 
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