dtug1701b Posted June 10, 2014 Report Share Posted June 10, 2014 Anyone know how much HP gain from stock with a twin 67mm throttlebody? Someone's selling one for a good price. Link to comment Share on other sites More sharing options...
shelbypt Posted June 25, 2014 Report Share Posted June 25, 2014 Anyone know how much HP gain from stock with a twin 67mm throttlebody? Someone's selling one for a good price. I would guess it to be about 15-20 HP Link to comment Share on other sites More sharing options...
shelbypt Posted July 20, 2014 Report Share Posted July 20, 2014 30 HP over stock with a TVS. Link to comment Share on other sites More sharing options...
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