With 575 PS (567 HP) and 750 Nm (553 lb-ft) of torque, the standard BMW X6 M is not exactly underpowered, but G-Power’s proposal involves even more horsepower.
Available in three-stages, the tuner’s most humble offering raises the 4.4-liter twin-turbo V8’s output to 650 PS (641 HP) and 850 Nm (627 lb-ft) of torque through either a software remap or the Bi-Tronik 5 V1 power module. The latter is a plug-and-play solution, while the former appeals to drivers who require a customized solution.
Stage 2 uses the company’s Bi-Tronik 5 V2 or the Bi-Tronik 2 V2 software remap, but before one of these can be applied, specially-fabricated stainless steel downpipes have to be fitted to reduce backpressure in the OEM exhaust. Once the software is calibrated, the total output jumps to 700 PS (690 HP) and 905 Nm (667 lb-ft) of torque.
With Stage 3, the SAV’s stock engine is massaged to deliver a total of 750 PS (739 HP) and 980 Nm (723 lb-ft) of torque, with uprated turbochargers, stainless steel downpipes and bespoke titanium exhaust system, which features four 100 mm diameter tailpipes and two rear silencers. Besides offering a deeper soundtrack, the exhaust sheds 23 kg (51 lbs) from the vehicle’s weight, which now needs 11.5 seconds to complete a quarter mile sprint.
BMW X6 M owners who feel the need for other aftermarket nuts and bolts can also go for the GX6M-RS coilover suspension and for the 11×23-inch Hurricane RR forged alloy wheels, wrapped in 325/25 tires.