We specialize in developing and manufacturing kits and components for retrofitting vehicles with electronic fuel injected (EFI) engines. Most notably GM LS, Vortec, and LT1/LT4 platforms. We offer a full range of products including Standalone Wiring Harnesses, replacement GM Connector Pigtails, PCM Programming and much more! Free technical advice and documentation is also available, if you don’t see it, just ask!

To celebrate finally becoming a sponsor on LS1TECH, we are offering free shipping on all orders for a limited time. Our harnesses are all made in america and use new delphi components and automotive grade wire.

http://psiconversion.com/index.php

You can check out our site, or better yet give us a call.

Joe 732.977.1654
Jon 732.691.6531

 

Do you guys modify harnesses provided by customer? I have an uncut harness and pcm from a 2000 f body that I want to use on my 2nd gen fbody swap.

 

I have 2 of your harnesses, awesome quality and attention to detail. Mike from MCP Competition Engines picked them up for me. I'm installing the second one this weekend, if my throttle body ever shows up I'll be ready to start tuning

 

No they sell all new harnesses, your best bet would be to sell your current harness and put that towards the PSI. Itd be cheaper then a reworked harness that way.

 

ordered one a couple days ago.

 

Whats the wait time for one of these?

 

You're probably right.

How much do you guys charge to tune my pcm if I buy one of your harnesses?

 

We will tune a pcm for $175 or sell a bead blasted tuned pcm for $200. All harnesses are brand new, and most are ready to ship.

 

ITsslow98,

Are you a customer? I have seen your name come up a lot in the CTS-V section. I just picked up an 05 as a commuter. Its a great car, stock except for a k&n intake duct and cone filter. Ive fooled around with the tune a little, but thats about it until this weather clears up.

Joe

 

i love your guys harness ,, i need another one ,, whats the best price for an ls2 w, th400 thanks ...Josh

 

Looks like a great product, can you pm me a price for LS1 th400 and the preferred pcm for 3bar SD tuning.

 

PM Sent. Please let me know if you need anything else. Thanks.

Jon

 

I got my harness today. Looks great. High quality for the price! Now if I can only decide where to mount my PCM....

 

Paid for it today. I have to say all involved with my barrage of questions were more than helpful. Top Notch customer service. I cant tell you how many sales have been lost so far during my build due to lack of good old fashion service. I will do a full review of this harness when i get it.

 

I am not a customer yet but I will be as soon as i get the motor in my 93. You cant beat the V as a commuter car or even with light mods. But it leaves so much to desire in the drag strip department. Do yourself a favor and grab some headers and leave it be. Best mod ive done to the car was Kooks.

 

I'll need one for my car minus some plugs. It's a SD car so no MAF plug, oil height, oil pressure etc. Basically a stripped harness for a race car, no trans plugs for my th350 etc. Would it be any cheaper with half the plugs? Shoot me a PM and let me know your guys opinion on it with price Thanks

 

Thanks Jon ! Purchased another harness today for my 2000 camaro! Great customer service !

 

is an lt1 harness setup to work with the efi 24x conversion something up your alley?

 

I dunno about that whole customer service kick....I still haven't heard anything back from them........

 

Give em a call they are very helpful !