STI rear diffuser on a BE Legacy (updated pics)

[rougeben83]

DIY here: viewtopic.php?f=39&t=14893&p=170049#p170049 (https://sl-i.net/FORUM/viewtopic.php?f=39&t=14893&p=170049#p170049)

https://sl-i.net/FORUM/images/imported/2007/10/P1080039-1.jpg
https://sl-i.net/FORUM/images/imported/2009/07/P1080031-1.jpg
https://sl-i.net/FORUM/images/imported/2009/07/P1080028-1.jpg


Took it up to around 100mph, sustained cruise of 90-95mph, car is stable at that speed, but then again it always has been that way :smt006 .

It probably does help smooth the airflow going over the rear diff and RSB and to rear bumper as it was intended to do. Smoother airflow underneath = faster airflow = downforce :smt023

[02legacygt]

while it looks cool as hell, and im sure help on your car because its a turbo and downforce matters, im sure us NA guys it has no effect other than cosmetics...

way to be friggin innovative and prove further that subaru's arejust like legos!!!!

[Huffer]

while it looks cool as hell, and im sure help on your car because its a turbo and downforce matters, im sure us NA guys it has no effect other than cosmetics..

Physics is physics. Reduced air turbulence at any speed is helpful no matter how much power you have under the hood. It's not always about getting to [insert speed/lateral grip], it's about how you stay there. ;)

[rougeben83]

Well I'm sure it does something useful, but I agree, it does look cool and people who really are into cars are probably the only ones who will notice it. I just did it because I found one cheap locally and I wanted to balance out the skidplate in the front... oh and because it does look cool :smile: