General £10 postage for an air filter!!

Discussion in 'General Discussion' started by chris2982, Saturday 27th Jun, 2015.

  1. chris2982 Premium Member Club Supporter

    United Kingdom Chris Rowlands Gill
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  2. Nighthawk Guest

    United Kingdom Richard Milton Keynes
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    Im curious whether performance filters actually make any difference on diesel engines.

    That is a lot for postage however
     
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  3. H-Tune Performance Parts Trader

    Shipping is just marked that high as that's where the profit comes from :Laughing:

    We have an account with one of their distributors, ironically to get in an individual filter the postage cost means we can't even be much cheaper :Whistle:
     
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  4. chris2982 Premium Member Club Supporter

    United Kingdom Chris Rowlands Gill
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    annoyingly they were the cheapest place I could find it. . . but by the time the postage goes on it works out the same price as everywhere else lol
     
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  5. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
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    In honestly mate you're not going to see any gains on a forced induction diesel, absolutely none. On a naturally aspirated petrol you'll be lucky to see 1-2HP at the top-end.
     
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  6. Zebster Expert Advisor ★ ★ ★ ★ ★

    United Kingdom .
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    I have a theory that air filter flow capability is MORE important on diesel engines. On a petrol engine the air flow is already impeded by the presence of a throttle, so additional restriction caused by an inferior filter merely looks like a slightly less open throttle. So performance is only affected at wide open throttle. But, on a diesel, it is vital to get the maximum cylinder charge for optimum performance in all conditions.

    A guy on Civinfo tested a range of available air filters available for the I-CTDI and found the OEM airbox and filter to give the best flow rates.
     
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  7. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
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    The thing is with air filters it's a matter of balance, performance filters flow slightly better at the cost of slightly lesser filtration. K&N, Pipercross and the like just decide they're willing to forego a slight bit more filtration for air flow than OE.
     
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