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Apr 18, 2021

Tomei is not Tomei - Tomei USA vs Tomei Japan - Caution!

Tomei Japan website

I like Tomei parts. They make some of the best hard parts out there.  However, and this is a big however, what you are buying as Tomei parts, may not actually be parts made and authorized by Tomei in Japan. 

Tomei Japan headgasket. Notice logo. These are good. 

The more I am seeing and hearing issues about the Tomei USA parts, the more I realize I need to bring it to peoples attention.  Several times recently I have heard about people snapping camshafts in half, and headgaskets pushing water at first startup. 

Just recently my friends at Z-Car Garage had it happen on a customers car. They got what they thought was a Tomei Japan headgasket, and it was a Tomei USA part. The thing never sealed, and it pissed water all out.  Z-Car Garage and Rob are professionals, and have been working on the RB as long as I have. They build race cars, but crappy parts are crappy parts. They didn't even realize there was a difference. Most people don't even realize there is a difference. 

In my 20+ years of dealing with the RB, I have never had a Tomei Japan headgasket issue. Just recently I have heard of at least three people with Tomei USA headgasket issues. 

Tomei USA Logo. If your parts have this logo, use caution

Camshafts, I wrote most of the issues I heard of, to people not paying attention to the down lobes in the camshafts, then loosening them up, or tightening them down wrong. Over the years, I know many people that "had the cam fall off the bench". At least what they told me about a cam that was broken in half. But in the end when I hear its a Tomei USA cam, and it breaks, I have to say its probably a subpar part. 

Tomei USA headgasket. Notice Logo. If you have this headgasket, use caution

Thank you very much for your continued support

As we have already announced, the original products of Tomei Powered USA Inc. starting with “T” in their part numbers are not designed, supervised, tested, manufactured or quality checked by us Tomei Powered Inc.

Now from March 2019, everything not only the “T” items Tomei Powered USA Inc. sells is their original product which is not from us Tomei Powered Inc. since the license contract we made with Tomei Powered USA Inc. has now expired as of the 28th of February 2019.

Please be advised we do not take any responsibility and we are not liable for any damage or loss through use of the original products of Tomei Powered USA Inc.

We sincerely apologize for any inconvenience this may cause, and much appreciate your understanding in this matter.

So check all your parts. Its not just you if you are having issues. 

Make sure you are using genuine Tomei Japan parts.

Buy USA Legal R32, R33, and R34 Skylines at!
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