Revo Crank Pulley - .810 lbs.
Revo Water Pump Pulley - .565 lbs.
Revo Alternator Pulley - .192 lbs.
Revo Idler Pulley (Pair) - 1.078 lbs.
TOTAL WEIGHT SAVINGS - 5.02 lbs. lighter and 65.5% reduction in rotating mass
Johnnyon 4/21/14Talk about a weight difference. After taking off the stock crank pulley, I held and compared it to the Revo Crank Pulley. It was much lighter. The construction of the pulleys are absolutely flawless. I had ordered the blue set and it looks absolutely gorgeous on my Satin White Pearl BRZ. The install was very quick and easy. It took only an 45 mins for all the pulleys. I didn't have to worry about the Stock intake, as I replaced and have a lot of room to work with.
Altogether, I love it. Products are always pristine. Hope to see other performance parts like these come out. (Catted UEL header xD)
Kennethon 12/26/13I bought the S2 set in August 2013 and have been driving around with them for the past 4 months. The main thing you notice with the pulleys installed is a much more "willing" engine. Starting from stops requires less throttle input and the engine seems happier below 2000rpms, this is great for city driving. While moving, it just feels like the car lost a bit of weight, not a lot, but it is a change you can perceive and more than you think based on the listed weight loss. The best part though, rev-matching. "Zing" is the best way to describe it. The BRZ is a fun car, and this set only adds to the occasion!
These pulleys ooze quality and meticulous detailing, and I have no doubts they will outlast their oem equivalents. I'm looking forward to having more Raceseng parts in the future!