|
A few things not mentioned above that I remember from my own UEL install (which I did solo).
1) Remember to unclip the O2 sensor harnesses before you start! The wires are pretty fragile and the sensors are pretty expensive. If I recall, the clip closest to the passenger side radiator fan was difficult to remove. Don't be afraid to use a small pick to help hold the clip retainer as you gently pull on the clip itself.
2) Something I didn't do, but wish I did, was unplug the radiator fans before starting the install. Once you are done, you are going to want to check for exhaust leaks. It is hard enough to check for exhaust leaks on an uncoated header because of the radiant heat, but impossible if the radiator fans are on. If you try to unplug them after you've had your car on for a minute or two, your new header will give you second degree burns. Obviously, don't forget to plug them back in once you're done with the install.
3) I'd recommend a proper O2 sensor socket to remove and install the two sensors. I found that a crescent wrench did not provide sufficient leverage and I was worried about warping the sensor threads. Also, don't worry too much if the sensors "creak" as they are being removed - it freaked me out at first but nothing bad happened. Just go slowly. You'll notice the outer covers are pretty pliable, so try not to bend them.
4) Also, if you choose to put anti-seize on the O2 sensor threads, do so very sparingly. You don't want to contaminate your O2 sensors.
5) As with most metal bolt-on parts, heat cycles causes the torque to go out of spec. Once you've driven with your new header for 20 min or so, be sure to lift the car back up, re-torque all bolts, and check for evidence of exhaust leak (black soot around the flanges). I found that while the header and over-pipe bolts were generally very close, the exhaust hanger bolt was pretty loose - maybe because the exhaust shifted while driving.
Good luck! It's an awesome mod!
|