While the DISI-MZR engine found on the Mazdaspeed 3, 6, & CX-7 is a fun and potent powerplant, it does have some common issues that must be addressed with age and if you want to produce more power. One common issue is the OEM VVT Actuator which controls the Variable Valve Timing of the intake camshaft. Actuator failure commonly sounds like a rattle and/or chain slap from the passenger side of the engine. This is due to the actuator losing its ability to hold oil pressure and keep tension on the timing chain.
Luckily, Mazda revised the OEM VVT Actuator with a stronger and more durable design that eliminates this failure from happening in the future. On average, we see engines needing this part replaced once they are in the 70k to 100k mile range.
You can also choose to combo in some CorkSport Performance Camshafts with this package. They are great for the daily driver and performance builds. This is a great time to add performance cams since you will have the camshaft out of the engine for the VVT install.
Sadly underrated in the Mazdaspeed Community, performance camshafts are a great way to make more efficient power with your engine. CS Cams were designed for the street driven car that may with simple bolt-ons to 500+ builds. They increase peak power, peak torque and improve response with both turbo spool and between shifts. Checkout more details here
Each VVT kit comes with all new OEM components featuring the Mazda revised intake camshaft VVT actuator.
It will take you 6 hours to install the VVT replacement Kit.
6 Hour Install Time
2007-2009 Mazdaspeed 3
2010-2013 Mazdaspeed 3
2007-2012 Cx7 Turbo
2006-2007 Mazdaspeed 6
2007-2009 Mazda 3 MPS
2010-2013 Mazda 3 MPS
2005-2007 Mazda 6 MPS
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