I replaced the long timing chain guide on my G37 using an OEM unit from Z1 Motorsports as part of a full timing service, and I’m very satisfied with both the part quality and fitment.
The guide is built to OEM standards with solid construction and precise dimensions. Installation was straightforward, and it lined up perfectly with the timing chain and mounting points. Having parts that fit correctly the first time makes a big difference when working on internal engine components.
Although it’s not a highly visible part, the long timing chain guide plays an important role in maintaining proper chain alignment and reducing wear over time. Replacing it while performing timing work is a smart preventative step and helps ensure long-term reliability.
Z1 Motorsports provided a smooth purchasing experience. Shipping was fast, packaging was secure, and everything arrived in excellent condition.
Overall, I’m very happy with the quality of the part and the service from Z1 Motorsports. It’s a simple but essential component, and I would recommend replacing it during any timing service.