# DIY Rear, anti airdam (top speed/track mod)

**URL:** <https://forums.speedlife.net/t/diy-rear-anti-airdam-top-speed-track-mod/19056>\
**Category:** Builds\
**Created:** [October 20, 2006, 8:24am UTC](https://forums.speedlife.net/t/diy-rear-anti-airdam-top-speed-track-mod/19056 "2006-10-20T08:24:13Z")\
**Posts on this page:** 1\
**Showing post:** 19

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**Author:** ![MaximaSE98](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/maximase98/32/7600_2.png) [@MaximaSE98](https://forums.speedlife.net/u/MaximaSE98)\
**Post date:** [October 24, 2006, 11:49am UTC](https://forums.speedlife.net/t/diy-rear-anti-airdam-top-speed-track-mod/19056/19 "2006-10-24T11:49:44Z")

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> [@newman](#):
>
> they did it on mythbusters.
> 
> EDIT: looking at the shape… the part you made may effectively ADD lift

i agree as well…its like flaps on an airplane wing…to me it seems like ur angle is the opposite of what u need…the part attached to the bumper should be higher than where it attached under the car…if ur spare tire well is lower than than the bumper u should attach it there some how…but i could be tremdously wrong cause my logic isnt always that good

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