I just did this last night. There's another thread about this exact same thing, the guy that runs the turbo PT Cruiser I think. But he only cut the fins near the intakes. I took it a little further and did all of them. I used a dremel with a cutting wheel, didn't radius the edges though. Hope it holds up. Today I was driving around Philly (RTs 422, 1, 30, & I-76) and usually the dummy gauge is pegged right at the middle mark (4th from the top) when the car is sufficiently warmed up. Today I noticed that with driving it does get lower. Cruising on I-76W @ 60 mph, the needle got to the 3rd from the bottom mark. Without a scan tool, I don't know what temperatures this is but it does work.

Ambient temp when I started driving was 74 degrees and when I came back is was around 83-85 degrees. I did notice that it took longer to warm up though. All you northerners take that into consideration.

I don't think I ever use the horn, so I was contemplating driving "Grille-less" but decided to put the grille back on seeing as how I was already in front of the car when this thought occured to me.

Justin