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Hello. I was wondering which one of these is needed to bypass the immobilizer on our cars. I've already done a search and the topics give inconsistant results. Some people say the DEI 555I and some people say DEI 555H. I wanted to make sure which one is correct so I can buy the right one. I do not want to get the DEI 555U and lose a key. There is also the PKH3 Bypass Kit which should also work. Does anyone have anything good or bad to say about these bypassers? Or would buying the 555I, 555H, or PKH3 not make too much of a difference? Thanks in advance.

 
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555I is the one you would use so you dont lose a key. In my car I have the PKH3. Works awesome. I have had the unit in my carfor about 9 months, probably the best thing I could have in my car when its been about -20F at night.

 
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Thanks, that's what I was thinking but needed confirmation. I think I'll opt for the PKH3 since I've heard really good thigns about them. Should there be any trouble installing it in a 2004 LX? I don't think they changed the immobilizer system, but just want to make sure. Thanks

 
Rep Power: 396

I dont think they did, but check with your install people just to make sure.

 
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I recently had mine installed, and apparently the 555H is the right one for our cars - the 555I did not work when they tried it. The 555H is for like 3 models of Honda/Acura cars - ours being among the three.