I have a 2011 Mazda RX8 with a carless mid pipe and x force muffler. I'm pretty new to tuning and don't know much so any help would be greatly appreciated. I did -18 on the leading timing for the first 2 columns and -20 for the trailing I also did -22 to 68 6000 then from 86 to 104 7000 then from 12...

I've been on the series 1 forum and they have loads of free pop and bang tunes. I'm wondering if anyone has a series 2 pop and bang tune.

I have a check engine light on for my rear O2 sensor since I have a catless mid pipe. The code is P0037 and im trying to see how I can turn off the code and even out the fuel/air ratio. I heard that when the O2 sensor fails it makes the car run rich and I can tell that it is due to the smell of fuel.