L larz New member Jul 2, 2009 #1 I'm looking to put a corsa exhust, dynatech headers, tune, and a cold air intake on the g8. Will I really see any performance gains and mpg increase over stock?
I'm looking to put a corsa exhust, dynatech headers, tune, and a cold air intake on the g8. Will I really see any performance gains and mpg increase over stock?
