This is a direct fit replacement for precision 6466 Gen 2 ball bearing turbo charger. This compressor wheel can be used to upgrade a 6262 if the 6262 compressor housing is machined to fit the 6466 compressor wheel. This compressor wheel is balanced and ready to install without the need for additional balancing. The 6466 only exists in the Gen 2 ball bearing version from precision, so if you have a 6466 this is a direct fit for the original precision 6466 turbo charger.