Thread: Downpipe and o2 emulator?

So you've read my Safely Modding Thread on here too? If not General Tech section and have fun.

The new DP does come with a o2 bung but most people delete the rear o2 sensor. If your car is a '01+...you HAVE to run the rear o2 and have the cat code tuned out of the PCM or put a high flow converter in there.

x2 what blue said. The downpipe replaces the section where your stock cat is. It isn't that much more money to get the SpeedDaddy headers. If you plan on modding more in the future, skip the downpipe and go right to headers.