Mike, I have a question for you regarding my stage 2 tune. I purchased a custom catless xpipe which currently only has the o2 sensor bungs for the primary/front o2 sensors. Can I safely run without the rear sensors using the tune or do I need to have the rear o2 sensors installed into the xpipe as well? Thanks.
2008 Jerez Black Metallic E93 6MT
K&N Drop In Filter | HPA Pulley | Custom Catless Resonated X-Pipe | BPM Stage II Tune | Megan Racing Exhaust