Turbocharger BMW X5 X1 125 225 325 425 525 160kw Small Side Turbo NEW 7823256. + High Quality Mounting Kit (Market value 30 gbp). This turbo is only option for 160 kw engine (small side). Upgrade Stage 1 – This Turbo has Top quality, aftermarket compressor wheel manufactured from solid (MFS) billet alloy via precision 5 axis CNC machine. The cold side wheel is the same size as original turbo but it is lighter and stronger wheel. It helps turbo spool up little bit faster. To get any power increase car needs to be Chip Tuned.