Pump up the volume in your Fiesta, exhaust volume that is. The Mishimoto Fiesta ST exhaust has an overall diameter of 2.5 to provide a subdued yet aggressive exhaust tone. The 1.6L EcoBoost under the hood of your Fiesta will thank you for letting it be heard. The optional resonated mid - pipe tones the sound back a bit to prevent drone when cruising on the highway. This Fiesta ST exhaust is constructed completely of mandrel - bent 304 stainless steel, for smooth exhaust flow and maximum durability. You won't have to worry about this exhaust rusting out and plaguing your system with exhaust leaks. The Mishimoto Fiesta ST exhaust is customizable, as you can choose from polished, black, or burnt titanium tips. Installation can be accomplished in under one hour to get your Fiesta ST back on the road in no time. Combine this exhaust with the Fiesta ST Downpipe for a complete performance exhaust system. The Mishimoto Lifetime Warranty guarantees precision craftsmanship, to keep your Fiesta's volume cranked up at all times.