Underdrive Pulleys?

Worth it? Anyone bought a generic one off ebay like this? http://cgi.ebay.com/ebaymotors/88-91-Honda-Civic-CRX-1-6-SOHC-Underdrive-Pulley-89-90_W0QQcmdZViewItemQQcategoryZ38656QQihZ008QQitemZ 180111552963QQrdZ1

1.20 lbs seems damn light. What kind of gains could I expect? I have no A/C. I took my compressor out.

I don't know about some ebay crap but I had Unorthodox Racing pulleys for both the crank pulley and alternator pulley. I also had an 11.9lb ACT flywheel and Exedy Stage 1 Clutch. The motor reved up VERY fast and caught hard on each shift. Motor mounts would've probably been my next mod if I stayed d.

if you are intrested in a pulley i recommend UR..i was pleased with the quality of the product. i would never buy any of that cheap shit off ebay..but thats just me