OK, I'm planning to get a pulley for my '05 MCS, and I'm also planning to go with a 15% pulley to keep the supercharger RPM in spec.

But I'm having trouble figuring out which pulley to get. The range from $75 for the Alta Classic to around $150 (depending on the vendor).

Is there any real world performance difference for the extra money spent? I don't really care how spiffy the Alta v2.0 looks, I'm more concerned with bang-for-my-buck.

Thanks in advance! I'm sure this has probably been discussed before, but I'm a bit of a noob to this forum and I'm suffering from information overload right now.

 

I've had the Alta classic 15% for about two years and love it. When i got mine it was around $100 I think. It's the best bang for your buck without question. I'm no expert, but I don't see any difference in performance from the 15% v1.0 and v2.0.