Fog lamp brake ducts

[Big Sky WRX]

If one is tracking his car occasionally, you'll find that heat in the brakes is a problem. This mod will help w/ additional air flow onto the rotor area while retaining the use of the fog lamps when not needing the air flow.

A couple of notes- I first attempted last year to setup the ducting so it was routed dirrectly to the center of the rotors- this is the most effective way to cool the brakes. Unfortunately I ran into a couple of problems- first the passenger side proved to be very difficult to route the ducting due to the manifold being in the way. Second I secured the ducting end along the tie rod and then attached it to the speed sensor bolt. I was never satisfied w/ this setup and came up w/ another one- this one's easier, albeit not as effective. The reason I used high temp 2" ducting was to help w/ my original setup- I also had to use a reducer on the duct itself -from 3" to 2".

This new setup you can use the lower temp stuff and in 3" making things easier and cheaper.

Let's get started- first the fog lamps need to be removed- three phillips head screws- don't try to remove the one that looks different- it's for adjusting the lamp. Next pull the plug on the lamps- now you can remove the fog lamp.

Should look like this:

[Big Sky WRX]

Next you'll need to access behind the fender splash guard- a few little plastic fasteners. I did this up on my ramps to to ease access. Once you have access you'll see the fog lamp holder just slides out (held in w/ three tabs). You'll have to affix your duct to this plate- takes some cutting/sanding to get it just right- I don't have pics of this as I did this last year. I used an epoxy and bent of the sheet metal in a few spots to keep the ducy attached.

Here's a few pics of the plate w/ the duct attached: side view (you can see the reducer as well) :

[Big Sky WRX]

A front view

[Big Sky WRX]

top view w/ hole- I use a plastic grommet- this is where the fog lamp plug goes in:

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Installed from the fender well:

[Big Sky WRX]

Here's the actually ducting w/ plastic ends (ends sourced from hardware store):

[Big Sky WRX]

Close up of end- I cut an angle into them to insure clearance of the tires and help direct air:

[Big Sky WRX]

You'll need to cut a 2" (or 3" inch or whatever you use) hole in the fneder splashguard- a hole saw on a drill works perfectly and easy:

[Big Sky WRX]

Hose attached to duct:

[Big Sky WRX]

What it looks like from fenderwell:

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stealth mode

[fourstardrift]

Great write up Big Sky.

I also found this on scoobymods.com
http://www.scoobymods.com/forums/showthread.php?t=1664

[WRC_Obsessed]

Great write up!!!

Thanks Big Sky

[Big Sky WRX]

Thank you sirs. I think I'm going to take it a step further and fab a little "scoop", probably out of light aluminum, to help direct air directly into the center of the rotor. Soemthing along the lines of this:

[Big Sky WRX]

The EVO comes w/ a factory piece as well

http://www.mitsubishipartsstore.com/...da9f9baa370666