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991 GT3 ECU Flash Tune for Dundon Race Exhaust

  • 991 GT3 ECU Flash Tune for Dundon Race Exhaust
  • 991 GT3 ECU Flash Tune for Dundon Race Exhaust

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Our 991 GT3 Tune extracts even more power from our Dundon Race Headers.  The Latest Revision adds about 15whp on top of our 40whp from just headers alone!  55whp from headers and an ECU Flash tune.

 

The tune is performed with a Dimsport My Genius handheld tuner using the OBDII port of the vehicle.  This is convenient and easy to do!

 

 

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