Zetec
Is the "150 BHP" your estimation or have you seen rolling road dyno figures for the 206CC. This is a 12+ bhp gain for an air filter in a 206!!
I have added both panel and induction filter on different cars in the past unless you can find a good source of cold air then induction filters can actually reduce bhp.
On the Pug Sport web site there is a dyno test of a range of filters for the 206 which the K&N Panel filter shows a gain of 4bhp but the piper X induction shows a drop in BHP of 2.
Is the "viper" model different to the one tested here?
On the same web site there is a link to an ITG filter which is over £300 which is a fully enclosed induction air filter and this gives a gain of 6bhp
Results
K&N air filter £35 = 4BHP
ITG induction £330 = 6Bhp
So that works out a £150 per additional brake horse for the ITG model.
So " (IMO)in my opinion" i would not dismiss the K@N filter so quickly and as far as value for money this seems a much better option.......just my opinion
If you have seen rolling road figures for the 12bhp gain somewhere please point out the site as Im sure a lot of people here would be very interested including me.
Regards
Sam1974