View Full Version : B5 S4 down pipes

02-07-2011, 06:28 PM
Hey guys, I've been a member on here a while but I don't really do much replying to people because half the people on here think everything is a stupid question and are so quick to give their angry openion.

But anyways I've a set of downpipes from my s4 that I switch back to stock after putting new 02 sensors in. I wasn't completely sure but I thought at the time that was the reason I had such issues with 02 codes. Anyways, check out the picture and let me know if your interested.

I thought I would offer it to you guys before I posted it to the classified section.

thanks, Justin

02-08-2011, 02:21 PM
The reason you probably had O2 codes is because (I'm assuming you have secondary O2 bungs welded in that I can't see) you would have had to get CEL eliminators or use 2 spark defoulers stacked on top of each other. BTW, this doesn't work for every car, but in most cases will work. Or you could get them coded out.

THIS (http://www.audizine.com/forum/showthread.php/231301-DIY-B5-S4-Removing-DP-s-to-make-Piggies-(For-6spd)) thread lists the defoulers needed.

Obviously it's too late now, but I'd thought I'd share since pretty much all my opinions are not angry. [:D]

02-12-2011, 11:49 PM
stage 2 file should do the trick with the 02 sensors CEL....