This will help you pick which kit you require for your engine
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 5551532
Part Number: 17187
1L/V8 2001 - 2003 GMC Yukon XL 2500 8
The new Aeromotive Shutoff Valve Fuel Filters allow you to shutoff fuel flow and replace your filter elements with little or no fuel loss
1964-1972 Skylark S4 Brake System Front 4301526R Fuel-Vapor This will help you pickFits 1964 72 GM A Body, 67 69 F Body & 64 74 X Body Cars w OE Spindles (Also fits DSE, Heidt's, Fatman, Ridetech & L&H Drop Spindles) Features: 2 Piece, 4 Piston, S4 Caliper Manufactured in Phoenix, AZ CNC Machined from US Sourced Forged or Billet Aluminum Powder Coated Finish Hard Anodized Aluminum Pistons, Stainless Steel Abutments and Noise Suppression Clips Dual Seals, Dust Weather & Pressure 1 Piece Slot, Drilled, Zinc Plate Rotor Specs: