You will find both equally piggyback and flash tuning choices accessible for the N55 and the choice on which tune to operate is entirely private desire. We gained’t deal with the intricacies of N55 tuning here, but We've got published focused N55 tuning guides about each BM3 and MHD N55 https://strikerscarscom.stck.me/chapter/1966206/yuththsaastrkaarphathnaathurkicch-nailnaihaekhngkhanaidaintlaaddicchithal