Dont want to spoil anyones fun, but looking at Roars web site it looks awfully like inside the carbon fibre lookalike outside its just a couple of sponge filters.

Anyway on the Mondeo the Filter is not the bottle neck in air supply, its actually all those resonaters and pipes behind it. K&N, KKM, Roar or even no filter will give you at max 2hp and more noise than standard. I see no dyno difference between K&N and no filter on mine (lots more noise though)

The only way an air filter swap will ever give you more than 5hp is if you have modified everything else and the air filter is limiting the flow, this just isn't the case on the Mondeo (whoops Contique/SVT etc)

I've been doing a lot of intake work on my Mondeo, using a Dyno, and moding the filter and TB have not made more than 2bhp's difference, the intake path is the problem and gives very turbulent flow, we need to smooth this flow to get velocity up and make it longer.

By the way, Larger TB's have always given me less power as the volume of air through the intake manifold is the restriction, hence wider TB, same air flow = lower air speed

Just my 2 pence worth

Mad Mole
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2L Zetec, Cams, Stage 2 head, Valve work, Powerflow, Unichip, AEM Ram, K&N, Ecotek, 75mm Lower etc.
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