The X5M by Velos also has a Stage 2 performance tune yielding over 90 horsepower and 130 lb-ft of torque. Other upgrades such as suspension, and aerodynamic are also available from Velos Designwerks as part of their tuner packages.In standard form, the X5M is powered by a 4.4 liter V8 engine which delivers its 555 horsepower at 6,000 rpm and 500 lb-ft of torque from 1,500 to 5,650 rpm. The engine uses the twin-scroll twin turbo technology with High Precision Direct Injection.