https://www.mosselmanturbo.com/performance/bmw-z4-lci-18i-e89-156hp/
Claims to add 70bhp tp stock via plug and play, not come across them before but power gains are impressive, 156 to 225bhp without an ecu flash......
Mosselman is a renowned tuning company, long year experience with BMW superchargers and also since a number of years in chip tuning BMW turbo engines. Based in the Netherlands.
