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Air Filter, K&N, MX5 Mk3/3.5/3.75

SKU: 33-2335

K&N Performance Panel Filter

A drop in replacement filter panel. Comes with the legendary 1 million mile warranty, and improves air flow as well!

  • Designed to increase horsepower
  • Washable and reusable
  • K&N Million Mile warranty

Fits all Mk3, Mk3.5 & 3.75 models, 2005>2015


Based on 16 reviews

Darren Holdsworth
Revs more freely, not too sure about any extra performance. A smidge perhaps but that negligible it could be just my subjective optimism. Happy though. Just keep giving the car what it deserves, the best. Having a BBR centre section and back box fitted tomorrow. So excited. Next stage I have any money all set for the BBR200! I love my car. I love MX5Parts! As ever delivered faster than blood products!
28/06/2022 12:17:07
tony dryden
A snug and easy two-minute fit on a Mk3.5. I am sure that all the reviewers can't be wrong in that the car is smoother with a slightly better acceleration in the mid-range, the difference felt noticeable straight away. Even if this is a placebo effect it is worth 40 pound!
08/04/2018 12:16:12
Paul Burford
That was the best 41 quid Ive ever spent!!, Fitted to a NC1 1.8 and the difference across the rev range is incredible, much more lively up to 3.5k and then comes alive after that, I do have a sports back box fitted and the K&N combined sounds like a 5 should, Fuel consumption if anything has marginally improved, Excellent service from MX 5 parts, ordered on Friday night and was in my grubby mitts Tuesday morning.
18/02/2017 12:16:15
Andrew Kerr
This is simply the best upgrade you can make on a MX5. Quick arrival, easy to fit, marked improvement in smoothness of acceleration across the rev band, slightly more torque and I think slightly improved bhp. I was not expecting to this but it really is good on all counts.You will not notice that much change in engine tone at all, so if you are after sound improvement you'll need to look at exhausts.Great product, really pleased!
01/07/2016 12:16:17
Mervyn Ainsworth
If you do nothing else to your MX5, fit this air filter. My MX5 2.0 Sport Tech 3.5 now has mid-range power and revs to 7500rpm freely. It shows just how much the standard OEM filter chokes the car's performance. Cheapest tune-up on the market!
02/06/2015 12:16:20
Geoff Rogers
If you can`t fit this in under 2 mins you shouldn`t be driving. Cleaner pick up on acceleration and smoother throttle response. Mind you my OEM filter was filthy despite Mazda allegedly servicing the car 3 months ago.....
25/03/2012 12:16:35
Paul Grindlay
Delivered within 24 hours. Took 5 mins to fit. It does seem to make a difference my car runs and rev smoother. Very pleased
08/03/2012 12:16:35
sam poulton
good service from mx5 parts as allways, however the filter isnt all that ive had k&n filters on my last few cars and they have felt fine however on the mk3 mx5 it seems to make the cars intake seem stuffy and the standard air filter actually seems better for performance, ohh well live and learn, guess ill just have to buy the pipercross foam filter.
06/03/2012 12:16:35
Matthew Swainston
I'm no mechanic but was able to fit this in a couple of minutes. There's not a lot of space in the MX-5 engine bay but it's not a difficult job. As long as you've got realistic expectations of what a good air filter can do then this is money well spent. My 2009 1.8 is never going to rip up the road but it does feel a little more willing and responsive with this filter fitted. £38 well spent.
30/01/2012 12:16:36
Nice product, if its time to change your original mazda filter, K&N filter is a choice.Not very much diference thouth (horsepower or noise) , just a little torgue rise up.10+ day of delivery time to Greece.thanks
19/05/2011 12:16:42

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We understand that its really important for you to receive your goods in a timely fashion and for a competitive price. To ensure that we can deliver this we have developed a strategic partnership with both the Royal Mail and our courier partner, Think Worldwide.

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It is inevitable in an open market like the internet that there will be some individuals selling some items cheaper than we do, and some selling them for more than we do, just as in the high street. We take great pride in offering a fast, efficient, friendly and secure shopping experience, with great products at fair prices. We encourage our customers to shop around, but are very pleased to welcome them back again and again.

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If you order before 3pm, Monday to Friday and we have your items in stock , we’ll despatch the same day . If you order after 3pm, we’ll still try to despatch that day but, if we can’t, we’ll despatch the following day. Items ordered after 3pm Friday or over a weekend will be despatched Monday. Items despatched on Friday are for delivery the following week. Items ordered over a Bank Holiday will be despatched the next working day. MX5parts is constantly updated to keep pace with changes in our stock but demand is high and we occasionally run out of popular items. If we have run out of stock and can’t despatch your order the next working day, we’ll email or phone you with a revised despatch date. You can then either accept the revised dispatch date or cancel the order, as you wish. Please note that during special offer periods, dispatch of your order may be delayed slightly due to high a volume of orders.

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