+High Quality Mounting Kit (Market value 47 gbp). This listings is for one core. 4.4 engine has 2 turbos and this core will fit both side turbos. This Engines can have several turbo options. Please make sure your old core looks the same as in our advert pictures. Upgrade Stage 1. This Core 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. 5-8, 11657848115, 11657599837, ZYL.