MITZONE Upgrade Aluminum Valve Covers Left and Right Compatible with 2003-2008 Nissan 350Z Infiniti FX35 G35 M35 VQ35DE 3.5L Part # 13264AM600 13264AM610

These things are awsome! Ive had about 6 different G35s now all of them with the warpped plastic valve covers. But these aluminums are great. They look great. install really easy for anyone mechanically inclined. Good quality gaskets. The only thing that i dont like is that I am goiing to have to figure out some way to clean my engine bay up more to show these things off...

I’ve had these on my 350z for well over a year now and have had zero issues. Like many 350z’s my spark plug wells were leaking badly. I used the gasket they supplied but used RTV in the corners where it’s needed. Paint was good and the PCV valve came disassembled to avoid breaking during shipping. I love that these are aluminum and won’t shrink from all the heat cycles and I can replace just the spark plug wells if I ever need to (unlike the OEM ones). Fit was perfect and you can’t beat it for the price. If you’re on the fence about these just do it!

Came on time and package great, only down side is that It didn't come with all the part. Was missing oil filter cap, tube, and bolts. Other than that fits great

It arrived perfectly fine with nothing being broken, yea it had some very minor issue with the paint on some of the edges but it’s barely noticeable plus it won’t be visible once installed but great deal for the price and the color as well, and might have to use your local autozone/ oriellys gasket instead of the one it came with but other than that It’s been about a month or 2 and I had zero issues so far

Been running these valve covers on my G for about one year. Out of the box, you have to take off the baffles and clean out metal shavings. Bad overspray on the inside of the valve covers and in the bolt holes. All bolts were torqued to spec and in sequence, but the driver side valve cover eventually warped. Also, the threads for the coil pack bolt holes are weak, the threads broke when tightening the bolt to torque spec after doing some check-up on the car. They are cheap, but the quality is poor and these are not worth the buy.

Looked like a good value for the price and right out of the box they looked pretty good.After full unboxing and examination, I do have some concerns.First, there is a lot of paint overspray on the mating surfaces of both covers. This is going to have to be removed by hand with 0000 steel wool and a solvent.Second, I'm also concerned about the "flatness" of the surfaces since paint got under it in a number of places (see Photos).Not bad enough to send them back (especially with the damned Amazon One Timer Password), but I am going to have to put in extra time and effort.The Pros & Cons:Pros:- Reasonable Price- Very well packed- All the gaskets, balance pipe and hardware are included- The paint is a wonderful "Arrest Me" red- Paint quality on the exterior is greatCons:- Paint inside the covers and on the mating surfaces- Concerns about the flatness of the mating surfacesUpdate once they are installed.

I took the precautions advised here and you tube. Used upgraded gaskets, cleaned out the aluminum debris from the casting and thread locked the screws holding the internal baffles in. Hasnt leaked in several months now. I would STILL like to know if they have replacement spark plug tube gaskets available.

I don't write many reviews, but I had to write this one. I am an 18 year Nissan Master Technician and the OEM valve covers for 350Zs, FX35s, etc are super uber expensive. These are a GREAT VALUE. The gaskets came pre-installed into the valve cover grooves. Fit and finish seemed fine. And the gasket was "squishy" and "Flexible" like the OEM gaskets.Upon installation, I lubricated the tube seals with WD40 to aid in them fitting over the spark plug tubes. They worked perfectly. I think some of the negative reviews about this product are due to installation issues and not taking care to not roll the seals/gaskets or not paying attention to the tube seals not getting cut by the spark plug tubes. I highly recommend them. Just be sure to also purchase the PCV cross-over hose that goes between both valve covers as yours will be dry-rotted and hard as plastic.