redwingone Posted June 27, 2008 Report Share Posted June 27, 2008 what exactly did shelby do to the KR to increase the horsepower from the base gt500? I heard that they did not change the pulley!!Thanks in advance to those in the know. Link to comment Share on other sites More sharing options...
ShelbyDude Posted June 27, 2008 Report Share Posted June 27, 2008 CAI & Tune Not much needed to get an extra 40 HP Link to comment Share on other sites More sharing options...
amyb Posted June 27, 2008 Report Share Posted June 27, 2008 what exactly did shelby do to the KR to increase the horsepower from the base gt500? I heard that they did not change the pulley!!Thanks in advance to those in the know. new 540hp with 510 FP torgue, 373 rear and short throw shifter as well, all adding to the increase, with suspension, handling Old, 500 Hp 480 torque, I believe Link to comment Share on other sites More sharing options...
SLB8SNK Posted June 27, 2008 Report Share Posted June 27, 2008 Hummm I thought it was the FRPP CIA with thier tune, as well exhaust changed out with SVT1's? Those three things pushes it up to at least 40 HP more.... all told you are closer if not over 550HP. Can anyone confirm this, and most importnat the exhaust being the SVT1's?????????? Link to comment Share on other sites More sharing options...
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