Precision Works Balance Shaft Delete Kit - Mazada MZR / Ford EcoBoost

Precision Works Balance Shaft Delete Kit - Ford Duratec & Mazda MZRDesigned to block off oil passage to balance shaft assembly when it is removed from the engine.  By removing the heavy balance shaft assembly, the engine will respond and rev faster, which yields more horsepower.Applications: 2003 - 2007 2.3 Duratec Focus 2005 - 2012 Mazda 2.3 MZR 2.3 2.5 Duratec Engines Mazda 2.3 2.5 MZR Mazda 5 6 MazdaSpeed 3 6 CX-7 Key Features: Precision CNC machined  100% billet aluminum block off plate Grade 8.8 or higher fastener  Installation instruction is not included Professionally installation is recommended