N Nikk New member Aug 28, 2010 #1 What's the best customization to a Mazda RX-7 to add more HP(horsepower)? Do you know what/how/where to upgrade it? I really want my Mazda RX-7 to be a lot faster...pushing it to the limits.
What's the best customization to a Mazda RX-7 to add more HP(horsepower)? Do you know what/how/where to upgrade it? I really want my Mazda RX-7 to be a lot faster...pushing it to the limits.
