By the way DAN so what you're saying is if Monster Flow is making somewhere around 2hp@wheels than the KKM makes somewhere around 5hp@wheels and then I guess your 9" K&N makes around 7hp@wheels.
That is about right. Numbers I gave were power gains at peak power which is usually also the peak gains, though solid gains seen across the rev range. Hard to say eactly what the big K&N does vs stock. In my run ofcourse it was combined with 75mm MAF and smoothed airtube vs stock combined to add 12 HP. Ive seen 2 dynos for small (OEM size) without the airbox ..both made 5HP. Ive seen KKM make 5 HP but Ive seen it make 0 HP as well. Bobby Knauber compared KKM vs Monster Flow and KKM was about 3 HP better (IIRC). Monster Flow was 1 or 2 better than stock. Mine is 2 better than KKM. So, big K&N may add up to about 6-7 HP vs stock but that is sort of a rough estimate.
