GIAC performance software for the bmw ® Z4 ® ® E89 ( 2009 - Present )
3.020Turbo20N54
Engine Controllers
GIAC PRODUCTS ARE INTENDED FOR CLOSED COURSE COMPETITION. UNLESS OTHERWISE NOTED THEY ARE "LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY." ( PER CARB ) Please read our important waranty and disclaimer notices for more information.