hey wats up, so ive recently noticed that my car is only gettin 60 miles to the half tank, and the only performance upgrade im running is catback exaust, someone told me it might be my MAF sensor, any ideas suggestions ??

 

sparkplugs, fuel pump, fuel filter, maf, air filter just a couple of things.

 

just do what tip5 said, do a full tune up, it should be better, did your driving change? if you are harder on the car it will get bad mileage,

 

I had good luck changing my pre cat O2 sensors and running a few tanks of Gumout Regane.