Quote:
Originally Posted by Zerohour
I've been considering a lightweight pulley for the Subaru, but I ended up pulling the trigger a bigger purchase. :-)
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I put an lightweight underdrive pulley set on my car but it's impossible for me to tell if it helps the MPGs. The savings, if there is any, is probably around 1% which is too small to tell, especially since I did the mod soon after I bought the car before I could get a lot of MPG data.