I have an 08 wrx with a vf48, i recently had to swap the uppipe with an aftermarket one because the welds on the stock one broke and it was rattling like crazy. I dont have a wideband or an accessport im running an open source tune and my tuner is about 200 miles away. Can anyone help me out with some data logging or just check out my afr’s? Im not sure if the aftermarket uppipe is drastic enough to cause the ecu to not learn the new uppipe. --thanks
Im pretty sure I got one in the garage not hoocked up.
Pm me if you want.