Curious of peoples PERSONAL, experience with the PLX M-300. Any bad or good comments are welcome about it. Thinking about getting it. Seems like a clean, simple AFR monitor.

 

i have one and had no problems at all! good instuctions, easy to read and plug into stock ECU for narrow band reading. would reconnmend getting one

 

I had one and it worked great! I sold it when I sold my STI. When I decide to start playing around with the Evo, I'll get another one. For the price of around $300 you can't beat it.

 

i have it. its pretty good and pretty straight forward to install. Haven't connected it to the stock ecu and unfortunately i cannot data log, but i will when i go stand alone...

 

I thought the M-300 came with a plug that replaced the narrowband reader in the pipe, which turns it into wideband?

 

Mine works great, I'm actually adding the gauge to change some things in my interior. I added a bung to my dp and connected the o2 sensor there.

 

what you can do is completly replace the stock O2 sensor with the PLX one casue it outputs both wide and narrow band....the wide band signal goes the display and the narrow band goes to the ECU to elmintate check engine light and give the ECU a better narrowband reading. or just have a competly differnt hole drilled and run just the wideband portion leaveing the stock O2 sensor alone.