[robmarley]

Hi all,

I just installed catless downpipes and want to adjust my tune to fully take advantage of the free exhaust flow. So far I think I am should lean out the AFR towards the top end, but I am not sure. So basically, any insight on what parameters I should be adjusting and how I should adjust them would be really appreciated.

Also, I am currently tuned using OpenFlash Tablet and adjusting maps with TunerPro.

My car is a 2009 335i x-drive with automatic trans and alpina b3 software. I have an AFE Pro Dry-s drop in air filter, homemade intake scoops, vfsr chargepipe and now catless dps.

Thanks in advance for any advice you could offer.