I'm one of the very few people on this board who have actually owned and driven a 12a pp, open header on the street. ONCE. My parents live in a very rural area...and so I decided to take off my exhaust, and take it for a spin. My then girlfriend wanted to go with me. I said shure, and we fired it up. It was loud. let me repeat that again. IT WAS FREAKING LOUD! I short shifted the car until we where a good couple miles away. I nailed it at around 4k rpms. By 7k rpms with no hearing protection, I could'nt take anymore. I kid you not. The entire car viabrated from the sound. It made my X, a little funny feeling to say the least. (I'll leave it at that. ) When we finally pulled back into my parents driveway, and shut if off, my ears rang like I just came out of a concert, and had been standing in the mosh pit for hours. Not more than 5 minutes later, we had cop cars driving up and down my road. I'm shure they where looking for a downed helicopter. Bottom line is...if you lived anywhere near a town, you would probably be thrown in jail. Good luck with your project. CJ

 

Maybe mazda will make ya a 26b for you...haha

 

that would be fun

 

i have heard a pp at the drag track i had to cover my ears and they still rang

 

I drove my 12a pp with open header once and, ya it was really loud, you could feal every exhaust pulse hit through the whole car. I wore hearing protection and it wasnt too bad, but like pp13bnos said, if you leave any where near a town you done, and even if you dont and you have to drive by more than just a couple peoples houses, they WILL call the cops. I doubt the one you heard was actually open header, it probably had at least a presilencer on it.

CJG