well the good news is non of that happened - advise taken though... and yes Mustang magic on the dyno day. I just wish I re loaded my tune between 2nd and 3rd pull - I was running lean and uped it in the tune after the dyno.
I have basically done everything without going Turbo or supercharger - Best bang was the Steeda Under drive pulleys. Felt a HUGE pick up of the line.
Exhaust I did Kooks Long Tube catted H and the new Flowmaster American Thunder Classic - No regrets
I had them. Sounded good but made like crap - welds broke a few times. I ended up tossing them and going with something better - You get what you pay for.