Hi Guys, I have bmw 550 ix. I build my car 3+ years. DME 85.4. Custom program. exhaust manifold from X5m F85, Turbo F85. No maf sensors. Exhaust M5 F10. intercooler M5 F10. R20 Forged wheels, tires 265/35 305/30. Salon from M5 F10. Brakes front m5 f10 rear brembo gt4.

How your cars? and how tune your cars?