Cast Aluminum Compressor Housing For Dual Ball Bearing Turbo T51R Mod1. Does this mod make more power or lose power? The turbocharger will operate exactly the same & the parameters will remain exactly the same. 2. Can I remove the mod, if I dont want the sound anymore? No, the modification is permanent and irreversible. 3. Do your T51r mod covers work on other brand turbos? Yes, they fit directly on the units which follow factory wheel specs of compressor wheel inducer exducer: 65. 7 82. 6mm *This is intended solely