Yeah. I got a baseline on a Mustang dyno before and after the car had the headers put on. Those #'s were so off I wouldn't even post them. Crazy. But, I'm running right at 405 rwhp now give or take. I say that because I just took out the Vararam since I couldn't stand the bucking anymore. In the future, I hope to add ...oh, about 150.
LOL! It's actually funny that you ask because a certain exhaust company did my break in for me w/out my approval...lol. Stainless Works took my car w/ 42 miles on it and did a complete exhaust package from LT headers all the way back. (the #'s you see from England Green stock were actually with LT headers, if that is the one you were talking about...i put in the disclaimer that there were LT's).
But, they took my car and ripped on it recording the burnouts and high speed passes and then tossed them up on youtube. Not cool. But, we took care of it.
Honestly, after the high revs, burnouts, etc from them, I kind of got on it from time to time, but really waited to after 500 miles to REALLY regularly get on it.
So...that's about it.
thanks for the comments on the stripes too. That took a lot of work, photoshopping, and discussion over teh phone to get those babies done.