VWVortex.com - B6 S4 piggies DIY?
Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up


    Results 1 to 3 of 3

    Thread: B6 S4 piggies DIY?

    1. 03-26-2012 08:35 PM #1
      I have a 2004 S4 6MT

      Okay, so I've searched google, VWVortex, and Audi Forums for info on a DIY for piggies for the B6 model s4. I know how to remove the downpipes (found that thread)

      And I figured out a fast way to get the precat removed once I have the dp removed.

      So I can remove the DPs and I can gut the precats. But from there, I'm just no connecting the dot with the CEL and the O2 sensors. I understand that there are 4 O2 sensors? 2 after the precats and 2 after the main cats? Do I simply buy a set of spark plug defoulers and put them into the openings for the precat O2 sensors? Do I have to move them closer to the main cats AND space them?? Should I get the VAST spacers instead?

      I've read that you sometimes will get a CEL anyway, even if you space the O2 sensors.

      If I go to the trouble of pulling my DPs and gutting them, what do I need to do to the sensors to avoid a CEL?

    2. Member 96jettasexer's Avatar
      Join Date
      Jun 7th, 2004
      02 Jeep Wrangler
      04-03-2012 12:18 PM #3
      I gutted all 4 cats. I installed the VAST spacers in the rear-most 02 sensors. No CEL. Dont need to extend any wires. Just plug and play. Big difference

    For advertising information click HERE

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts