I got 2-4 mpg (depending on my lead foot) with the Powerade spacer. People are going to tell you for the most part that it doesn't work but I kept a detailed mpg log on my '01 auto PT from the time it was new, before and after the spacer. I did not get any extra HP, but the mpg went up. The engine was already broke in at 28,880 miles and tops for mpg in combo city, country highways and freeways was 20 mpg before the spacer. After the spacer I got 22-24 mpg. The '01 is now my wife's and without a chronic lead foot like I have she gets 24 mpg. If I hadn't kept a detailed mpg log I probably wouldn't have believed it either.....Don't get the Airmax intake. It's overpriced and the swirling air thing is BS. If you want a nice intake that keeps out the hot engine air then get an Airaid intake. It's not spendy and does the job. It uses the bottom of your airbox and keeps out the hot air. I put one on the '01 when it was mine. It sounds and works great. My wife likes it too and told me when I got my GT I couldn't have it.
