JDM/USDM exhaust valves, ...are they interchangeable? Options

[Urputus]

Hi all!

I was searching for OEM exhaust valves for my Celica ST (7AFE) and have noticed, that there are USDM and EDM/JDM ones available on the market. The part numbers are:

13715-15070 for USDM ones
13715-16060 for Euro/JDM ones.

The USDM ones are about 30% cheaper, but are they interchangeable with the EDM/JDM ones? Does anyone know where is the difference between those two exhaust valves?

Thx

[Smaay]

i cant think of any reason they are not interchangeable.

[Urputus]

Thanks Smaay.

Judging by the technical information quoted on most e-shops they should have the same diameters. But I found one e-shop where they indicate different information. I was also told, that the JDM ones are from better material, but this I wasn't able to veryfi anywhere.

So if there's anyone who changed the exhaust valves in the past on USDM 7AFE engine and has its technical specifications, I'd be very glad if you can send me anything which can help me to decide .