The 4.0L V6 of your 2005 to 2009 Mustang isn't exactly known as a powerhouse of thunderous sound. The factory exhaust not is wheezy and almost non-existent, but a few exhaust modifications from Stage 3 can add a monstrous roar to your base model Pony and even add a ton of horsepower and torque if you're willing to do a full overhaul. All of our Mustang V6 exhaust parts come from some of the best exhaust companies in the business so that you know you're getting top-quality performance exhaust parts that also sound awesome. Some of our most popular Mustang V6 exhaust kits are dual exhaust conversions that give your Mustang a great look and sound.