[elhigh]

Smaller works.

For a while I had some ginormous mirrors on my truck. Not the big West Coast style trucker mirrors, but the biggest car mirrors I could find that would still hook up to the factory mounting points. I liked the extra viewing area but the noise generated by those big paddles shoving through the air was tremendous - I thought the truck was just noisy, but when I swapped them back it felt like the noise in the cab at speed dropped by about a quarter.

The hard part is you're doing this with an STI. They're big fun but thrifty they ain't. My son recently made a run to Nashville and back and whistled up a little over 30mpg, I couldn't believe my ears, and that's just with a non-turbo Forester.

I reckon the hardest part is keeping your foot out of the boost zone. When that flat four burble winds up, it's a hoot.