I've seen several before/after clips of exhaust upgrades on the RX-8, but haven't seen one for an R3, so I thought that I would post this to share it with other Mazda enthusiasts. Here are a couple of clips of my stock exhaust and the Mazdaspeed sport exhaust which was installed earlier today. The video doesn't do the sound justice, but there is definitely a noticeable difference, especially above 5-6K RPM where the Mazdaspeed SCREAMS a beautiful melody! The MS has a deep, throaty sound at low RPM, a low rumble at idle and shrieks a race-link tune above 6K RPM. I'm very, very impressed. It was worth every penny!