I was on my way home when I got to the light and a 05 mustang v6 was next to me. I didn't even look at him cuz my car is running low boost 4psi. When the light turned yellow he rev at me and I knew it was on so I launched at 2000 rpms and then I shifted 2nd by the time he was 1/2 car infront of me but as soon as I hit 3rd I passed him and when i hit 4th gear he was way behind me. I heard a whitle noise coming from the mustang probably a loud cai. I though I was going to get smoked cuz I just have a k&N filter only but it's pushing 4psi only. I can't wait for my 3" cat back and 3" DP.