The MON55TER SL55 AMG makes almost 600hp on E-85 and runs deep 11s while looks smooth and luxurious on the track. MOD LIST: Custom dyno tune for e85 and 93oct file via MyGenius by RACE IQ. Making 538whp/600wtq on 93oct and 586whp/652wtq on e85. 80mm fixed pulley 172mm upd crank pulley pinned to crank. Arp