thunderstruck507

iTrader: (18)

As stated, will all long tube swap headers require o2 extensions for the wiring harness?

Could the lines simply be extended by splicing and soldering? That's prolly not even a good idea anyway...

ls1_chevelle

iTrader: (9)

I didn't have to lengthen my factory harness.

Rodder

iTrader: (2)

Depends on what harness you are using and what headers you are using. With a 99 Fbody harness and Hooker long tubes, I had to extend the front O2 wires. Another option would have been to pop open the PCM connector and move the rear O2 wires to the front.

thunderstruck507

iTrader: (18)

nice, I didn't think of that...

my pcm is 99 and I'm looking at the Hooker headers unless I can get the Doug's for under $500

Rodder

iTrader: (2)

If those are the 1st gen Fbody ls1swap Hookers, they come with extensions for the O2 sensors.

Sunset'01Z

iTrader: (10)

i just bought the vette 02 sensors, the bosch 13111's. came with the long *** pigtail so i didnt have to worry about it.

ssduane

iTrader: (3)

I have my PCM mounted on the front of the trans tunnel, with the 02 wires running down to with the tranas harness I have plenty of wire left. D-side ahs about 2 feet extra, the p-side has a good foot left over.