Has anyone found or purchased any pulleys for the Mazda 3?

If so, how much have they improved your performance.

Thanks!

im an owner of 05 mazda 3 and i have called every local shop looking for pulleys. i have had no luck. your main pulley is built into the motor and cannot be replaced as of now. thats what i was told by a mazdaspeed mechanic out of knoxville,tn

There are several different sets of underdrive pulleys available. The set I was most interested in are the ones at SRMotorsports.com. They are out there, but I was just wondering if anybody has actualyl installed them.

SR Motorsports underdrive power pulleys are way too much money for the results. youll probably get around a 10 hp gain...for $500.00. thats $50.00 per hp.

Don't get the SR pulleys. Here's why: http://www.mazda3forums.com/index.php?topic=53912.0