Went to the dyno on Saturday and damn I'm completed disappointed with the numbers. Given I have a auto and I'm loosing from that alone I really was expecting more with the mods I've done so far. Now I am running a bit rich but from 2 pulls I came up with 210rwhp & 240 ft.lbs torque = not good!! The guy stated that I was running rich and my A/F ratio started out around 15 then went down somewhere around 12 then finished at around 13 or so roughly. Now I know leaning it out a little so the graph reads flat where it should be is going to help out but the thing that troubled me is the tuner (he's a reputable NMRA guy) stated that my MRT H-pipe was probably robbing hp as well I should look at a bigger MAF. He said since I was running the Accufab plenum & TB combo it's probably not getting the flow it should with the stock MAF. He also said he's seen guys running aftermarket H's and then swapping to a X and their gaining back maybe 12-15hp, obviously with a catback as well. What do I need to do here people? When I was at the shop I immediately started thinking about swapping my midpipe but then I thought no way....there's no way I should be losing hp.