Here’s the data on the final production version of our new cat-back sport muffler for naturally aspirated AW11s. (Naturally aspirated = without supercharger. AW11 = first generation [1985 through 1989] Toyota MR2)
Anyone who needs a new muffler should take a look. This fits like stock, so it’s easy to bolt on in your driveway with basic hand tools. It’s easy to live with every day, but sings when you put your foot down.
Here’s how it sounds: