Complete kit used to upgrade the early 99-06 mechanical chain tensioners to the later; much improved; 07-17 style hydraulic cam chain tensioners. Designed to work with Feuling Reaper conversion chain drive camshafts. Kit includes the needed components to upgrade early ''99-''06 style mechanical spring tensioner cam chain drive systems to the late ''07-''17 hydraulic cam chain drive system using hybrid camshafts. This kit includes a FEULING RACE SERIES billet oil pump; High Flow cam plate; RACE SERIES full travel Lifters; FEULING''S billet hydraulic tensioner housings; tensioner pads; cam chains; sprockets; sprocket alignment spacers; TIMKEN/FEULING bearings; needed gaskets; O-rings; ARP cam and crank hardware; Loctite and moly lube. Requires purchase of conversion style camshafts.Note: Rocker box gasket kit included so the factory one piece pushrods can be reused. See Feuling 588052 for billet rocker box breather assemblies For ''99-''01 Magneti Marelli equipped ignition system engines requiring the timing tab on the 34 tooth rear camshaft sprocket.Requires separate purchase of conversion camshafts - See Feuling 707505; 707506See Feuling 707311 and 707312 if looking to upgrade to heavy duty one piece pushrods.