Hey everyone, I recently got an exhaust on my celica 5sfe with 2 1/4 piping, my question is will the exhaust make it better or worse on fuel?
aftermarket exhaust and mileage - 6G Celicas Forums
i have the greddy sp2 @2.5 in piping from cat-back and also got injen short ram intake since i put the intake and exhaust ive been getting 25-28 mpg. i smash when i drive also cruse at 80 on highway with windows and moonroof open.