have a look at these Lemans style air extractor flaps .. www.hybridsplashguards.com by Vortex. Matches front and rear air extractor exhaust vents of Audi and STI's . Apparently is the # 1 choice guard on the new baja ready SVT Ford Raptor .. I've run them on my Dodge Dackota up north the last 2 years 35 Below celcius... A friend of mine .. a Lemans LMP race pro liked them and got them for his new wrx sti sport tech .... Got Sema's "cool green tech" award ... save fuel while looking cool .. way sick !