2010-2013 Mazda 3 & Skyactiv Suspension & Handling
I know, it shouldn't be a either or question, but if you have $4-500 to initially invest in improving handling performance on a stock M3, especially on a track, are you better off putting it into some good quality Summer tires or a good quality front/rear sway bar set?
My 2012 2.5 M3GT has the...