At the moment I just have my lm7 truck harness ( to short and with wrong connectors for the injectors when driving ls1 intake) so I'm think about to by a simple stand alone harness without ac etc.

Would It be hard to just fit the egr and all 4 lambdas and use the truck coils by my self to it at home? I'm talking about this type of harness
http://secure.ultracart.com/catalog/.../HAR-1013.html

 

PSI harness is the way to go, i just ordered my second.. Jon is on the forums im sure if he is on tonight he will chime in.

 

I Agree, the PSI harness made it so much easier. Plus when I sold my stock harness, it basically paid for the modified one.

The only legitimate complaints I have about the PSI harness was the TPS sensor wires were a tad too short and the O2 sensors plugs are for the more expensive early Corvette O2s and not the 2000-2002 Camaro.

 

PSI here as well. Great quality, fast response to my multiple emails, and a great fit.