Diamond Eye Performance 2003-2007 FORD 6.0L POWERSTROKE F250/F350 (ALL CAB AND B Steel: Aluminized Size: 4" Short Description: KIT, 4", TBDL, OR; AL: FRD4X4 Long Description: KIT, 4", TURBO-BACK, OFF-ROAD, DUAL; ALUMINIZED: 2003-2007 FORD 6.0L F250/F350, 4X4, AUTOMATIC ONLY Comments/Disclaimers: *NOT FOR SALE IN CALIFORNIA