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http://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html This article was written when cheap HIDs were all rage, but LEDs have the same root flaw that makes them unsuitable for halogen lamps; the source of light is a different shape and reacts with the reflectors in a different way. If you need more light, get BIG, BRIGHT auxiliary lamps, not garbage plug'n'play LEDs.

Huck - this is what I do. Check engine light doesn't matter so I just install a non-EGR engine and run it. Plug and play, runs like a top. You can also install the EGR intake manifold - and just run a hose from the EGR port on the drivers side to the IAC hose on the passengers side (install a T-fitting there) and you won't get a check engine light and no need to drill the block.

^ understatement! @Giles, that replacement piece you’ve made is NEAT! I don’t think there would be many over here that would go to this effort in their backyard/shed/driveway etc. keep up the good work! Cheers Bennie

Daniel Stern may still have a website devoted to auto headlights. I have seen one type of LED aftermarket that had a cone on which the led was 'back firing', seemed to be trying to duplicate a properly oriented line source.....? And, some I think have set screws so you can rotate them to try to create a good cut-off line. Dumping the heat is yet another problem for some folks. There's a little fan or some heatsink - some flexible - that sometimes requires deleting or modifying any rear cover on the light assembly Morimoto or other HID projector upgrades are often considered better than LED.. if any position on the car uses 9005 or 9006 bulbs, there's a 'hack' allowing use of HIR bulbs (Toshiba?) 9011 and 9012 - supposedly about 20% brighter. Just filing a tab down so the bulb will bayonet into the holder. there may be some good youtube video comparisons on this subject.

I second the addition of auxiliary lights. LEDs in a reflector designed for a filament will splatter all over the place.

EBAY, those are what I use... https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F360913631524 Work great for me

Looks pretty cool anyway Just put the two inlets close to compare Sorry to those who got thinking twin turbo EA82