The new EFR range from Borg Warner has been causing quite a stir since it was announced and one of the models to be widely available is the 6758, designed for cars wanting to produce between 275bhp and 450bhp. Available with a .63 a/r T28 turbine housing for smaller engines, and a .92 a/r divided T4 turbine for use on rotaries and larger engines, this turbo also features a billet compressor wheel, Gamma-Ti turbine wheel, large internal wastegate and much more. Preliminary reports from the tuning scene suggest these are the quickest spooling turbos for the power capability available.