Hey guys looking for your suggestions, inputs, opinions, advices, ect. And here's my story: A few weeks ago, my 05 sti started to overheat. I kept on driving and the temp gauge shot up to the red zone and steam and smoke was shooting out from the hoodscoop and through any cracks from the hood! I panic and I only have 2 more minutes drive until I reach my apartment so I kept on driving at high speed to get there as soon as possible. I know, I wasn't thinking about stopping and my common sense didn't kick in at the moment. Made it home and it was obvious that there was cracks in the radiator and I'm losing coolant fast. The Subaru dealership warned me that I will be needing a new radiator soon so I knew it was the radiator is at faulty. So I went ahead and ordered an aftermarket radiator plus 2 hoses from Mishimoto. Me and a buddy of mine installed the new radiator and the hose and added coolants left over that we had on us. Enough to fill the radiator to the top. Started up the car and it was still overheating... mind you we are not mechanics fyi. Just a few searches on the internet and a lot of things were suggested. That's when we tried adding a new thermostat and the car was sitting cool! Yes! A six miles drive to bring my friend back home and I noticed the temp gauge was rising within that 4 miles. I turn the heat up and it help alittle but the gauge was still fluctuating pointing between the middle and the next line up. For the next few days I had to drive to work and back with the heater on just so I can get by. Did another internet search and read about there could be air in the system. Ok cool. Burping the cooling system will be my next step looking into. I went to Auto Zone and bought 2 Prestone Dex-Cool 50/50 coolant and a regular funnel. Right in the parking lot, I took the cap off the radiator, placed the funnel there and poured the coolant in it until it reached just pass were the funnel shape forms on the funnel and I added some more in the reservoir tank. I turn the heat on to full blast and started the car up. When the temp gauge the point 1/4 up (first line), I step on the gas slowly to 2,000 rpms and held it there and watch the coolant from the funnel rises to halfway and then let go of the gas. Air are coming out! I squeezed the upper radiator hose to speed up the air bubbling. I repeat the these steps within the 1 hour and a half that I spent there until I see no more noticeable air bubbles. I think I fan turned on twice during the process. Cool! I think it s done! I turned off the engine and top off the radiator. Drove home with no more overheating! The temp gauge even looks like it's sitting cooler than before! A week went by and it's overheating again... it's showing the same symptoms, gauge fluctuation pointing between normal and 3/4 up(the second line up). I drove it that way with the heat blasting again for a couple of days. Could there be more air in the system? So one day on my hour lunch break from work ,I try burping the system again. Same process like how I did it before. But I added alittle more coolant through the radiator and res tank after I was done. nomore overheating. I did noticed there was a pool of coolant on the ground after the car sitting there for 8 hours at work the next day...But I thought it was nothing to be worrying about and hoping it was just because I added too much coolant this time . And then 2 days later, and it starting to overheat again =( I'm determined to get all of the air out now since I have all day to do so. So I repeated the process and air was bubbling out and I think after 2 hours, the needle rises to the last line just before the red zone and still rising slowly! during my experience with this burping process, this never happened before. the bubbles from the funnel are popping fiercely and erupting like mad! As if it was boiling.... it probably were! At the time I thought it was air still so I let it keep on happening but then my check engine light came on and also my cruise control is blinking. That's when I know I had to cut the engine off. I can't even drive it without overheating after 2 minutes now. The heat trick doesn't work this time. What could this all mean? Things to know about the car: Car is completely stock except for Turbo XS bov and Mishimoto radiator. Car have about 92,XXX miles. Had Subaru did my 60,000 miles( was it 60,000 miles?) service check up when my car was at 68,000 miles. Timing belt replace last year around this time @75,000 miles. New steering pump replace 2 months ago. I do not race nor go to the tracks with it. It's my DD and I pretty much babied it... well now I do because I have become an adult (lol) I am the second owner of the car and I bought it with only 9,000 miles. I don't know if any of these info is useful. Sorry for writing a book but I wanted to be as detail as I can be. Please help!