Manthey Racing GT4RS vs. Stock GT4RS @Spa Francorchamps.

[@Mrdfastcars]

SO the same speeds on cups, or did you add new GoodYears to both cars ?

[@porschegt1956]

@@Mrdfastcars MR & Stock on Cup2s same lap time. This video, Goodyear on MR & Cup2 on stock car, 4s gap using MRs aero & downforce.

[@Mrdfastcars]

@@porschegt1956 so the tyres are faster and the MR kit offers no lap time
is how I read that.

[@porschegt1956]

@@Mrdfastcarstire differential is 1.5-2s. The other 2-2.5 is in the kit (suspension, aero & downforce), which you extract on the better tires. MR setup always uses R tires (which are even more grippier)