Package Includes: Heavy Duty Bellowed Turbocharger Up Pipes All Necessary Hardware & Gaskets Fitment: Early 1999 (1/98 thru 11/98) 7.3L Diesel ONLY Note: Reuse of OE Y-pipe collector required. Early 1999 Model Identification: V8 Fender Badge and 4 Bolts Securing the Compressor Housing. Part number: PP-411-E99- Fit type: Vehicle Specific The Early 1999 factory up pipes are prone to crack and leak. This translates to a severe loss of power and fuel economy. Replace them with these stainless bellowed up pipes. Designed to allow for expansion and contraction of heat generated by your engine.