Dericks, if you hit it with a "solid" 150 shot & "truely get 150 HP you'll be in the 10s i'll guaranty from a 12.2/12.3 & a fairly mild combo. I dropped 1.3 & 13 mph in my 6sp. camaro with a 100 NX system, & it even had a window switch & wasn't on the nitrous all the time through the runs, it was set to come on at 3000 & kick off at 5600, i shifted at 6000.