I made the quick decision by getting a k & n typhoon intake for my 2010 WRX. I learned quick it didnt run quite right, especially without a tune. With more research I realized I may have been running too lean. back to the stock set up I went and runs great.
Anyways, would it be safe to run a replacement k & n filter in the stock intake with a Cobb post MAF hose? Without a tune?
I know I wont get much if any gain, just thought this would make the stock setup a little more efficient. Any thoughts or suggestions? Thanks!