Kassel Performance configures MSS54 and MSS54HP DMEs for supported BMW S54 engine-swap applications. Choose the base swap-coding package or the package that includes a MAF performance tune, then add compatible MSS54 coding services as separate cart lines.Fuel requirement: the MAF performance-tune package uses 93-octane pump gasoline unless another calibration is explicitly approved.Required order details Destination chassis and model year MSS54 or MSS54HP DME identification Transmission and intake/MAF strategy Engine, exhaust, and fuel configuration Requested swap-specific and optional coding functions Service deliveryDelivery method depends on the selected service and vehicle. After the application review, Kassel Performance will provide order-specific remote or DME-shipping instructions. Do not ship hardware before receiving those instructions.