I used Dormin kit 615-180 around $110 , one tip.. after you drain oil,replace oil filter, drain coolent, install kit , pull the plugs along with the fuel pump fuse and injector fuse, then turn engine over a few times, this should blow out any oil/antifreeze mix in sparkplug holes or until nothing comes out. Replace plugs, new oil (5w-30 cheapest you can find), fill coolent,install fuses and fire it up. Check for leaks, if good , take a short drive, let engine cool down , drain about a quart of oil out ,add engine flush, heat up (run for 5-10min) depending on brand, then change oil and filter again....you will need a inch pound torque wrench for UIM bolts.....after 1000miles do another oil/filter change...then back to your routine for oil/filter changes......I have 253k on my 98 and my UIM went at 200k