When you start getting really deep into modifications on your motor, you need to know the vitals. Keeping the oil pressure, oil and water temperature, and so on in check is crucial to prolonging the life of your engine. You can't rely on the factory gauges to give you the information you need because they're not the most accurate and usually only display low, middle and red. (Once you hit the red, you're screwed anyway.) The problem with cars lately, though, is that they don't have a lot of room to mount gauges, unless you're down to fabricate some mounting plates or drill holes all over your dash. However, the Defi-Link Display allows users to get all the crucial engine info through a digital display the size of a garage door remote. The install is made even simpler with the Control Unit II, which is the mastermind behind the whole ordeal. You just run all the sensors through it, then to the display and all your wire clutter is hidden away.
1. Before starting, jack the car up, then drain the coolant and oil from your motor. | 
2. Here is the oil filter sandwich adapter along with the radiator water temperature adapter. |
3. The Defi-Link Display monitors the engine vitals without taking up too much space with a bunch of gauges. | 
4. You just need to run all the sensor wires to the Defi-Link Control Unit II rather than to the display. |
5. Once all the oil is drained from your motor, take the oil filter off. | 
6. Use Teflon tap to wrap the threads of the oil pressure and temperature sensors, then tighten them into the sandwich adapter. |
7. Install the sandwich adapter in the oil filter location and tighten it into place. | 
8. Attach a new oil filter to the sandwich adapter and tighten it down. It's as simple as an oil change. |
9. Plug the harnesses from the sensors into the extensions so you can run them into the interior of the car later. | 
10. After love at first sight, we like to play a little game called "just the tip." |
11. Find a hole in the firewall and run the sensor wires through it. It helps to use a wire hanger to feed the wires through. | 
12. Remove the radiator hose and mark off a section to get cut out for the adapter. |
13. Fit the adapter into the radiator hose and wrap the temp sensor with Teflon tape before you thread it in. | 
14. Plug the sensor into the extension harness. |
15. Replace the radiator hose with the new adapter in place. Tighten down the hose clamps. | |