I purchased my WRX 04 in 2018 and I didn’t replace the Injen intake the previous owner installed. Recent I purchased Cobb AP and released in order to go stage 1, I need to use Cobb product, so I purchased Cobb SF Intake. It’s really easy to install. I spent less than 30 minutes from removing the old part to install the new one. I am not a guys who works on car all the time, so if I can do it, you can do it as well.
After sett drive, I feel it’s much smooth than what I had. It might be because the old one is dirty and I didn’t clean. I used to feel that it’s hard to speed up when I switch 2nd gear from 1st one, but now I don’t feel that. Cant wait to install the AP.
