The STM Walbro 450 Package Deal for Evo 4/5/6/7/8/9 delivers enough fuel to trap roughly 140 MPH and make 600 WHP with E85.
If you don’t already have it, we also recommend the STM Fuel Return Kit to aid this set up.
1996-2006 Mitsubishi Evolution IV V VI VII VIII IX
• Walbro 450 LPH E85 Fuel Pump (F90000274)
• Walbro Install Kit (400-1168)
• STM Fuel Pump Re-Wire Kit (FPRW)