Well before I had this Intake fitted, which if I remember correctly as I cant find the Dyno graph for it gave me 7bhp over Stock airbox, pipercorss panel filter and Carbon Air scoop whe running Bluefin stage 1@ the time
At AMD essex It ran 277bhp, 305Ibft. Bluefin stage 2+
The red line is the stage2+ plot
Since then this was fitted
And the results are as shown below.
As you can see
I had been giving the car quite a hardworkout on the way there then got caught in traffic and as you can see my first two runs wern't the best as my inlet temps were through the roof. Spo they left it with the fans on the car for a while to cool it down. he the 3rd run as you can see gave me 286bhp 301 Ibft
So 9bhp increase over the previous intake both at stage 2+, and peak torque was down which initially caught me by suprise until i looked and the entire rev range torque spread was better.
10Ibft more @2500rpm and a flatter plateau of torque between 3000rpm and 5700rpm.
What shaun mentioned as well which sounds about right to is that the intake will block the heat from the engine very well, whereas it doesnt show the real time benefits with the Bonnet up and a fan on it.
So Id guess that i have made about 16-18bhp over stock which is kwhat i was hopig for.