H Hopracing New member Joined Jul 19, 2012 Messages 1 Reaction score 0 Points 0 Jul 19, 2012 #1 I have a 2008 Sierra Crew Cab with 5.3L Flex Fuel & DOD engine. My question is will the ECU and factory fuel injectors be compatable if I increase the CID to 383?
I have a 2008 Sierra Crew Cab with 5.3L Flex Fuel & DOD engine. My question is will the ECU and factory fuel injectors be compatable if I increase the CID to 383?
