My Grimmspeed crankshaft and Beatrush alternator pulleys just arrived today by USPS EMS. I didn't expect it to arrived so quickly. I was expecting it delivered either on Wednesday or Thursday. Anyway, I was amazed at how good the pulleys looks like and also how lightweight they are.
Immediately I went to my car to compare them side by side with my OEM pulleys. This is how my OEM pulleys looks like at least for my JDM 2010 2.5i CVT Legacy.
Comparing the Beatrush alternator pulley with OEM pulley. It's confirmed that they are exactly the same in build and size in diameter.
Here's the crankshaft pulley comparison. It's confirmed that the diameter and thickness are the same. I will probably need to buy a new stretch belt just to make sure.