My crank pulley is aluminum. (I had the slippy pulley issue years ago and got the aluminum one instead)
No squealing or other issues... It seems like I get a small bit of boost but not nearly what it was before.
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'93 Anniversary Edition SVX 122k - 3.7 FD 5MT Swap, ECUtune 1a1, Bontrager RSB, Mad Restoration underway!
'20 Honda Ridgeline
Custom Oil Caps, Battery Bars, Phenolic Spacers for sale here:
http://www.x35design.com