Use this MagnaFlow exhaust system when you want to enhance your driving experience, whether it's daily commuting or weekend road trips. It's perfect for Mitsubishi Eclipse owners who want to add a sporty touch and improve performance. The main piping is 2.5 inches in diameter, and it has 4-inch polished welded-on double wall angle cut folded edge tips. Installation is a breeze, so you don't need to be a pro to upgrade your car.