Originally Posted by xxMichaelAnthony
The whole point of cat backs is that they are all legal for street use no matter were you live as long as they have some form of muffler and don't violate any noise restriction.
Kinda what I was thinking and this guy is also from California. From the magnaflow site referencing their cat-back street sytems.
Exhaust systems are designed for those seeking increased performance and better economy, balanced with interior and exterior noise levels.
These systems are tested against SAE J1169 standards.
Now if SAE J1169 standards, meet CA standards?