They would be putting it on a dyno to show the proof. even if its 405 I'd be happy. and thanks. I'd love to do long tube and midpipe but I don't have 2500 to dish out on headers and midpipe plus install. 800 on intake and tune is much more affordable.
well, when i say used, i don't mean very used parts. some people buy stuff and never install them and just want to get rid of it. I want stuff similar to that.
well, I'm looking to do kooks headers and midpipe. I actually found somebody selling exactly what I want for a Shelby though on this site lol. such a tease. and i'm actually trying to update it now.