FUNCTION: Coolant temperature run cooler because they are not running through EGR Cooler. These include:Improved Fuel Economy and Engine LongevityAn EGR delete helps you restore your diesel engine’s power levels which, in turn, also restores your overall fuel efficiency. You get heavy-duty metal injector fittings that won't crack or leak like plastic ones, plus a generous 5 feet of premium return hose that handles diesel fuel... Services up to 8 cylinder engines, Fits: 2., 8l CRD 2005-2006 Jeep Liberty Turbo Diesel engines Also fits many other common rail engines that use 0., 22 (5., 5mm) OD O-ring seal injector fittings and 0., 125 (3mm) hose. New retaining clips included Fuel Injector Return Line Kit For 2.8L CRD Jeep Liberty Turbo Diesel (2005-06 Not only does it make the process increasingly efficient, but it also reduces the chances of DPF (diesel particulate filter) failure. Carrot Top Tuning does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the customer. Jeep Wrangler Fuel Injector Kit; Set of 6; Black (99-04 4.0L Jeep Reduced Engine TemperatureEGR valves naturally contain a high content of soot. Fuel Injector Return Line Kit for 2005-06 Jeep Liberty 2., 8l CRD engines. Product Disclaimer: This product is not designed to meet any emissions/noise standards and is not for street or highway use. Helps Save MoneyIn addition, an EGR delete can also help you save money on some costly repairs. 5.5 Mm Fuel Line Fuel Injector Return Hose,Injector Fuel Return Pipe Fuel Injector Liberty Crd