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Old 05-11-2014, 04:40 PM   #165 (permalink)
Eastwood
EcoModding Lurker
 
Join Date: Mar 2014
Location: Northwest Arkansas
Posts: 61

Gigi - '13 Kia Forte EX Eco
90 day: 31.64 mpg (US)

Charlie - STi - '13 Subaru Impreza WRX STi
90 day: 23.03 mpg (US)
Thanks: 74
Thanked 26 Times in 19 Posts
Totally not an expert, but I think conventional wisdom would say to extend the lip all the way across.

Also, since you've made the underbody of your STI much flater than it was before, have you considered fabricating some rear diffusers? Maybe like this: DIY Rear Diffuser : The Writeup - NASIOC ?
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