Diamond Eye 155006 Downpipe Steel: Stainless Size: 4" Short Description: KIT, DP, 4"; SS: FRD Long Description: KIT, OFF-ROAD DOWNPIPE, 4"; 409 STAINLESS STEEL: 2003-2007 FORD 6.0L POWERSTROKE F250/F350 Comments/Disclaimers: *NOT FOR SALE IN CALIFORNIA