Buyer Beware -

It has recently come to our attention that the market is being flooded with cheap knock off harnesses (manufactured overseas). We got a phone call yesterday from someone looking for technical support that recently purchased a standalone wiring harness on ebay. This particular gentleman was unable to get the engine started so they called the phone number listed in the instructions. After a few minutes on the phone with our technical support we were able to determine it wasn’t even a PSI harness.

Apparently there are a few sellers that are stealing our photos/images, using our text AND also supplying customers with PSI instructions (and just changing the part # on the cover)! If that is not bad enough they didn’t even take out the paragraph in our instructions out where it says to contact PSI with any technical questions!

Please note all PSI harnesses come with a PSI Serial Tag with our Logo, Serial #, and Date of Manufacture – this will be located on the main wiring branch (near the PCM/ECM connector).

All PSI harnesses are manufactured in the USA, we only use Factory/OEM connectors and Automotive Grade TXL wiring. Some people might think a harness is a harness, and they can save a few bucks buying one of these cheap harnesses that are now being offered. We have seen some of the cheap aftermarket connectors out there and they are very thin/flimsy and are nowhere near the quality of a Factory GM/Delphi Connector.

Besides the lower quality materials being used, if the vehicle won’t start or you have any issues who do you call for technical assistance? I highly doubt these people buying the cheap harnesses made in China and reselling them online have the technical background/expertise to walk you thru any issues or questions you have if the vehicle doesn’t start or if you get a check engine light. They don't even bother to take their own pictures or write up installation instructions!

You might be able to save a few dollars getting one of these cheaper harnesses but many people don’t take into account the great technical support that you receive when you purchase a harness from PSI. Our technical support dept. is second to none - we answer technical questions all day long (many not even related to our harness). If you are shopping for a Standalone Wiring Harness just be careful and know exactly what you are buying. There are quite a few harnesses on ebay being sold under the CNCH or other brand name. Sometimes saving a few bucks up front will cost you a lot more in the long run.

We are started reaching out to all of these sellers and requesting that they no longer use our images, text, or instructions.

PSI

 

That's sad but not surprising.

I go to China all the time. In Shanghai, there's a knockoff market that is actually listed as "Fake Market" in the Maps.me database.

 

Buy straight through PSI, it is worth it.

 

Yep, PSI harness here. That cheap harness might end up costing quite a bit (of money and/or time) in the end, do it right the first time.

 

Funny you mention this. I was recently contacted by a company that wanted to sell them to me in bulk for resale.
I asked for paperwork, and they refused to provide any.

 

BIG surprise, right? lol

 

It was a HUGE buy-in too. I would've had to buy 50+ harnesses minimum.
The only paperwork they wanted to provide was a parts list in Chinese. I asked for copies of instructions, fitment, etc. They said they will not be providing me with any additional paperwork.

For some reason, they're still hounding me to buy them.

 

They must not know you very well.
They sadly underestimate KNOWLEDGEABLE people.... hopefully they get no takers to screw over...

 

When I got my PSI harness I put the big round connector for the 4L60E on backwards -- yes, it's possible. When I contacted PSI tech support to ask why my transmission wasn't shifting properly it only took them three emails to figure it out.I don't think I would have gotten that from China.