McLaren 600LT ECU Tune — Power Figures

Factory output for the McLaren 600LT is 592 hp and 457 lb-ft (crank).Stock + RK-Tunes Tune raises it to 715 hp and 639 lb-ft, a gain of 123 hp and 182 lb-ft.High Flow Downpipe / Exhaust + RK-Tunes Tune raises it to 750 hp and 686 lb-ft, a gain of 158 hp and 229 lb-ft.This tune is fulfilled by mail-in: you remove the ECU, ship it to us, and we flash it on the bench and return it.Figures are estimates at the crank; real-world results vary by vehicle condition, fuel and conditions.