I've got a series 1 (6 port manual) with a catless BHR resonated midpipe and no other performance mods. I made my own tune only to increase oil injection rates and adjust the temps when the fans kick in, but I was wondering if there was a good resource available for tuning. The ecu seems to do a good job of automatically compensating for the change, but frankly I have no idea what I'm doing. I was going to leave it as-is, but if there's more power or reliability to be had I'd like to pursue that. If someone can point me in the direction of guides / tutorial that would be appreciated.
