N55 F Series Tuning

N55 EWG (electronic wastgate)

• Stage 1 (up to 360HP/540NM) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for stock cars. (not available for M2 and X4 M40i)
• Stage 2 (up to 390HP/580NM) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for cars equipped with an upgraded intercooler or high-flow downpipe.
• Stage 2+ (up to 430HP/630NM) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for cars equipped with an upgraded intercooler and high-flow downpipe.
• Stage 2+HPFP (up to 450HP/650NM) - 93oct/98ron, 95oct/102ron, for cars equipped with an upgraded intercooler, high-flow downpipe and upgraded HPFP (at least B58TU) REQUIRED.
• Ethanol Mix Maps (up to 480HP/670NM): Stage 1, 2 and 2+ E20 Maps for ethanol blends of 20% and ST2+HPFP E40. 
• Pure Stage 2 Turbo OTS maps (up to 460HP / 650NM) 91oct/95ron, 93oct/98ron, 95oct/102ron
• Full E85 Stage 1 and Stage 2 maps (up to 400HP - fuel system limited)
• Full E85 Stage 2+HPFP (up to 450HP) 

          N55 PWG (pneumatic wastegate)

• Stage 1 (up to 340HP/540NM) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for stock cars. (not available for M2 and X4 M40i)
• Stage 2 (up to 370HP/580NM) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for cars equipped with an upgraded intercooler or high-flow downpipe.
• Stage 2+ (up to 400HP/630NM) - 91oct/95ron, 93oct/98ron, 95oct/102ron, for cars equipped with an upgraded intercooler and high-flow downpipe.
• Ethanol Mix Maps: Stage 1, 2 and 2+ E20 Maps for ethanol blends of 30%
• Full E85 Stage 1 and Stage 2 maps (up to 400HP - fuel system limited)