Advice 2010 5.4l flex power upgrades
#1
Senior Member
Thread Starter
Advice 2010 5.4l flex power upgrades
Hey I gotta 2010 lariat super crew with the 5.4l flex fuel engine and I'd really like some help getting more power/ fuel efficiency outta it cause I'm lifting it soon(4-6") with 35s and don't want to get robbed to bad on performance and gas cause I get around 12 mpg right now stock please help me out thanks.
#3
Senior Member
Thread Starter
Na I don't man I live in Tennessee I don't even know where to get that stuff plus I hear it messes up ur engine but what gear ratio would ya recommend( keep in mind I'm puttin a 6 and 35-37 inch tires on it