Waste of money and time. There was a video were they changed the normal filter for a K&N filter, and it showed that the engine had lost 2/3 BHP with the k&n filter. Don’t waste your time. People will tell you that they get faster acceleration and more miles per gallon. Evidently must be the ‘placebo’ effect. Buy some good polish and clean the car. It will have more effect.
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Great Barr, Birmingham.
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