1) what did they do to get the extra 10-15hp
2) what did they do to address the #8 issue and trans
3) someone post pics of the new screaming yellow! =-)
1.) Most likely nothing, probably just re-rated it, as most of the 5.0s were laying down RWHP numbers that normaly convert to about 420bhp. If anything though, probably minor ECU tweaks.
2.) Again most likely nothing, or if anything revised coolant passages, I have seen no evidence of this though.
3.) Look above this post.
Thanks for the grats and pics! 