These are special Turbines we had made to accommodate more lmm-lml turbo options. When making big power on drop in replacement turbos factory size lmm-lml vane height is a huge limiting factory when it comes to power and drive pressure. These are made with 15mm lly inducer vane height measuring 72.5/66.5 10 blade with lmm-lml shorty shafts. THIS IS NOT DROP IN REPLACEMENT MACHINING IS REQUIRED.