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Have questions, on a time crunch, or just need this quick?          Give us a call: 732-276-8589                                                              Email: CustomerService@PSIConversion.com

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  • NOTE
  • 4.9 out of 5
    21 customers
    5
    90%
    4
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    • Fugitive 1Badazz72
      The harness PSI put together is absolutely amazing in every aspect, from layout to the quality of the plugs, I couldn't be happier!! Thanks again
    • Tom
      These guys are good!! Gary in the tech department is simply AWESOME!!!! I had a small issue with the wiring harness and Gary took the time to walk me through every inch of it...we found a broken connection at one of the plugs...a very simple fix (wich they sent out ne wires with connections at no charge) and its has worked flawlessly since. If your a seasoned pro or a DYIer I highly recommend PSI...it is a complete package with easy to follow instructions...and it just flat out works!!!!
      I plan on another LS swap in the near future and these guys are my only go to!!!
    • Jeff
      Doing my first auto wire and needed to call PSI multiple times to integrate my LS harness to a 57 Chev Autowire harness. Your patience and good tech team got me through. Great support!
    • Gremlin
      The retuned computer worked perfectly and we had a Buick turnaround. Thanks 
    • Ed
      Helpful on the phone with the ordering process.  The agent was very knowledgeable of the product and what I was looking for.  Great price!!  Haven’t installed it yet, but the harness is put together very well
    • Bill Johnson
      Great team, great product, happy customer. Thanks for helping with my first swap!
    • Ron
      I ran into a problem with my harness and PSI went the extra mile to remedy the problem. Truly great after-sales service!
    • Bill Johnson
      I have no experience and these guys walked me through the whole process with ease. Thank you PSI team!
    • Bill H
      Appreciate y'all
    • Bill H
      Have had so many good experiences with the staff at PSI to be able to help me get everything for my swap. Very pleased with the harnesses and service
    • Rip Knowles
      First ls swap I've ever done and PSI made it very easy. Highly recommend these guys, not to mention their customer service is kickass.
    • K20 chevy
      Great customer service and great timing as always. Stay away from the ebay junk and just spend the money on their quality products you will not regret it.
    • Bill Johnson
      Looking forward to getting my next build setup with you guys. Very knowledgeable and professional.
    • Crazy1
      Works as advertised 
    • Steve k
      Use PSI when the LS swaps were new, have one in a daily driver obs Chevy 1500.
      Zero issues. The ground trigger relays for the fans are good if you know how to use them
    • Mr Skipppper
      worked and looks perfect, ZERO troubles.
    • Florida Hotrods
      Great service 
    • Fugitive 1Badazz72
      I haven't fired my LS swap yet but I'm in the process of installing the wiring harness and computer I received from PSI and it is well built with quality materials and they're customer service is 2nd to none! A definite go to for all your needs!!!!
    • Zack& Wendy C/10
      This was our first LS wiring and it was the best setup I could have bought from Mike. All of the technicians and salesman or very helpful! Everything was plug and Play gave you clear direction, clean package wiring and work perfect for our 1972 C10 stepside truck we even purchased the body kit from them. Would definitely buy again and looking forward to telling many others about their products and customer service!
    • Clay
      The psi harness came shipped nicely and quickly, looks amazing and very easy to install. Throughout my project I had a bunch of questions and psi was always able to answer any question for me. Overall great company to work with. 
    • Travis
      Good product and easy to install

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