Re: up pipes?
Bellowed pipes. For the Super Duty's, their anywhere from $400-$500. Check out Diesel Orings' site or Riff Raff diesel. I'd say their the cheapest. Or you could always buy the donut gaskets but why not spend the little extra money to fix it permanently while it's all apart..
97 F-250, 300/100's, e-fuel, Gearhead tunes, Stokers Unlimited stage 3 trans and T4 mount, s366, ARP studs, Comp 910's, Smith Bros PR's
09 Cadillac CTS-V, long tubes/Xpipe, Jeremy Formato tuned, ID850's, 2.38 upper pulley, NorCal icebox, Hennessy heat exchanger