Brake ducts - HELP!!
#17
Rennlist Member
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Through frame rail is best option... if you have a stock bumper, you can do this:
![](https://rennlist.com/forums/members/ninjabones-albums-widebody-picture10031-brake-ducts.jpg)
If you have an Evo I bumper, the brake scoops are much lower and you can run the ducts into the front trunk, and then into the frame rail (very nice solution, but requires you to move the battery and the ABS controller). If you have the Evo II bumper, the scoops are just slightly medial to the stock ones, but work well with direct connection to the frame rail (just behind the bumper strut mounting location)
You can see where the duct exits the frame rail in this shot.
![](https://rennlist.com/forums/members/ninjabones-albums-misc-picture9801-evo-uprights.jpg)
This bracket directs air flow directly on the rotor, and hold it in with safety wire... has worked out well.
![](https://rennlist.com/forums/members/ninjabones-albums-widebody-picture10034-brake-ducts-uprights-4.jpg)
![](https://rennlist.com/forums/members/ninjabones-albums-widebody-picture10031-brake-ducts.jpg)
If you have an Evo I bumper, the brake scoops are much lower and you can run the ducts into the front trunk, and then into the frame rail (very nice solution, but requires you to move the battery and the ABS controller). If you have the Evo II bumper, the scoops are just slightly medial to the stock ones, but work well with direct connection to the frame rail (just behind the bumper strut mounting location)
You can see where the duct exits the frame rail in this shot.
![](https://rennlist.com/forums/members/ninjabones-albums-misc-picture9801-evo-uprights.jpg)
This bracket directs air flow directly on the rotor, and hold it in with safety wire... has worked out well.
![](https://rennlist.com/forums/members/ninjabones-albums-widebody-picture10034-brake-ducts-uprights-4.jpg)
![](https://rennlist.com/forums/members/ninjabones-albums-widebody-picture10045-brakes-front-3.jpg)