Right now I have a trifecta tune. 7psi 1st gear and 22ish in the rest. They also left the code for the down stream 02 so when I have my down pipe on it throws the code. I also have hptuners software and I'm curious if I take out some 1st gear torque management and remove the code with hptuners will it take away my tune selection with the traction control or is the ECM locked with the trifecta tune. I haven't even hooked my laptop up to it.

 

It's locked u cant touch it with hpt. U can get the trifecta cable and take out the O2 sensor code tho

 

You are better off getting an 02 extender you can twist on your second 02. A lot easier, I use this one because it has a smaller opening than most

http://www.ebay.com/itm/O2-oxygen-sensor-straight-spacer-test-pipe-extension-extender-M18-X-1-5/291483385315?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D31966%26meid%3D5a21e91a8da548d499da93650a8c28f7%26pid%3D100005%26rk%3D2%26rkt%3D6%26sd%3D141410935430&rt=nc

 

Yea, I just tried its locked. And I have one of the J shaped 02 extenders and still get the code with the down pipe.

 

You can turn off the p0420 for the tune. Get the software and the cable. You will also need your file. They show you how to uncheck the code and turn it off.