Review on AEM 21 433C Metal Intake System by Alfredo Testerman

Turned out to have an illegal air intake system installed by the previous owner. (This was my first smog since buying the car, and I didn't know much about air intake systems or California laws against anything). So I had to buy a new air intake system with a special code to let the smog through. This one came with this particular code and got good reviews so I bought it. It was relatively easy to install and survived the smog. I have a feeling he could have more HP but never measured it. I measured the mpg and nothing changed. Still sucking 19.5 to 20.5 mpg. But it looks really cool and I like the sound. Not too loud like some cars. Highly recommended.