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Discussion Starter · #1 ·
Hello,

Will any H22 work with the 1998 SH instead of the OEM H22A4? I'm curious because I'm not sure the H22A with have a place to mount the ATTS. Can anyone help clarify please?

Thanks!
 

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Most H22As will come with ATTS. It will be specified when you buy the engine.
I did the swap to an H22A (they are JDM) some years ago. Great swap, but be warned the H22As are OBD1 and the US H22A4s are OBD2. You will have to change a bunch of stuff to get the H22A to work with your US electronics. Most Prelude sites have descriptions by folks who have done the swap.
 
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