Guys, I have the following bolt ons, drop in K&N airfilter, offroad h-pipe, flowmaster catback. I had my car dynoed a coupld of weeks ago, and at WOT my airfuel ratio was pretty rich up top (above 4,500 rpms). My questions is, under normal driving conditions, how would you expect my air fuel ratio to look like? Do you think I need a tune? They removed the air silencer on the second run, and my A/F got even richer, so that put it back on. I did pick up a few horsepower with the silencer removed though. What kind of power do you think I could pick up with a tune on my current setup. Peace!