Originally Posted by Mr. Furley

I calculated the downforce of the STi wing using the Langley Research Center FoilSim wing simulator. The results are 60 lb of downforce at 100 mph, and 140 lb of downforce at 150 mph, which is an increase of between 5% and 10% download on the rear wheels.

Originally Posted by T-Will

Would it be a lot easier just to keep some dead babies in your trunk to create downforce in the rear?

Originally Posted by midnitewrx02

i guess i must be a fanboy poser too since i have the sti rear diffuser, and cusco rear subframe brace to go along with it even more so that im getting 4 pots...so basically.. if you add parts to your car that are JDM/EDM, its ok, if they are USDM youre a poser/ ricer/fanboy...i guess i am all of the above

Originally Posted by zumnwrx

i guess im mostly talking about 04+ wrx's

Originally Posted by MBasile

your right, the ra-r wing is different from the usdm wing.....there isnt one and thats the point made in the quoted paragraph. It lacks the STi wing and therefore has less downforce and is less stable. It was said straight up in that paragraph

Originally Posted by stealthrex68

well since i started this post and have finally returned and read through all the posts...a lot which were very funny. Whats the conclusion? or is it still being debated

Originally Posted by 4URABUS

If you wanna get real tricky with that wing later on, you can do what this guy did and replace the upper half with one that has an adjustable foil.



PM Irishdude from the BAiC for details.

Originally Posted by MBasile

that looks pretty cool, but I'd want it all the same color

Originally Posted by zumnwrx

Zing!

to add to my original post the only wing that you could excuse sti or not is the carbon fiber one, why because it JDM, works and its optional. OH and the v7 ra wing since it was never offered here.