Question About Stage 1 Map
I'm gonna try to make this as short as possible. I have 2009 Wrx with muffler delete, resonator delete and k&n drop in filter. I also use 93 octane.
I have a v2 Cobb accessport and plan on running stage1 map. (I havent set it up yet)
Now,... the Cobb website said its best to return to the stock air filter due to the MAF reading, it should be re-calibrated etc... also, it said I could potentially run the car dangerously lean.
Does anyone have this setup? (or similar) is it really that bad to stay with the k&n drop in filter while running stage1 map? what should I do, any help or advice would great.