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Alasdair Stuart Jan Ekholm Alan Welsh Chris Lea-brown raffaello sernagiotto Derren Phillips Michael Dykes Stuart Daisley Martijn van Tol Fabio Sebastianelli

K&N Filtercharger Kit, MX5 Mk2/2.5

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SKU: 57-0372

Breath power into your MX5. Fitting a K&N Filters 57i kit will mean extra power, extra torque and improved throttle response. These kits are quality engineered and designed to last the life of your car. All 57i kits include comprehensive easy to follow instructions. All brackets, nuts and screws are plated for extra long life, and of course the filter comes with the famous K&N Filters one million mile warranty. The MX5 Kit includes a cold air pick up system to guarantee maximum power at all times.

Fits all 1.6 & 1.8 Mk2 & 2.5 models, 1998>2005

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4.64

Based on 11 reviews

Alasdair Stuart

Great bit of kit! Received as a Christmas present and fitted in less than 2 hours to my mk2.5 2002 Montana.The MX5 filter is easy to remove and replace with the K&N. It is also held firmly and securely. The ram air scoop and ducting a little less so. The tolerance between the aircon pump is small but eventually was fine with the use of the zip ties and a small amount of squishing. The instructions do not really say much about the inspection door. I folded this back on itself and zip tied it inside the front bumper. Worked well and does not rattle at all.Noise is the first difference noted - great on acceleration - particularly around the 4k mark. The next is performance. It feels perkier all round. Slightly better throttle response but a good tweak on the 3-4.5k Rev range.Highly recommended for the price!

30/12/2014 12:16:22

Jan Ekholm

When installed this thing is really nice, the throttle response is a bit sharper and the nice growling sound alone makes this a worthwhile investment.The installation however...There's a big rubber thing that adapts the MAS to the actual filter, and after 30 minutes of cursing I gave up trying to fit it onto the MAS, it was just way, way too tight. Lubricants as well as brute force and ignorance just gave me bruises and scratches. Finally I carved off some 2-3mm all around the rubber thing to make it fit. Clearly those two parts were not made to fit each other.Also, the included rubber tube which is supposed to guide cool air towards the filter can not really be installed without some major hacking. The plastic bottom cover under the engine simply has no space where one could install the pipe. There is a little "door" that looks promising, but it's just way too tight when opened for the aluminium pipe to get through. One would really have to cut out an own hole in the cover or simply cut out the small "door". The tiny teeny images in the installation instructions did not show what K&N wanted me to do so I simply didn't install that extra piping.Also, the box and manual only ever mention the 1.6 engine, so perhaps I simply got the wrong kit? I had a similar kit for my 1994 MK1 and there I had no problems with installations. Also, I had the same kit for my 2000 MK2, and it was also trivial to install but did *not* have any extra piping included. Perhaps I got a 1.6 kit?So, result when installed, 5 stars. Installation: 1 star. Average 3 stars.

03/05/2012 12:16:34

Alan Welsh

I have recently acquired my Mazda MX5 1.8 Special Edition Euphonic. Always wanted one when I was young but could never afford one. I'm 59 now and got it while I can still get in and out of it!!! Anyway came across MX5 Parts whilst searching the net and was impressed with the scale of parts and info available.Purchased the Airfiltercharger unit and I must say the service has been fantastic.The unit arrived at 3pm today. Read through the instructions vigorously and at 7.30pm I was all finished. Good instructions and good previous reviews made the fitting great fun. I moved the windscreen washer bottle to make things a little easier and I soaked the rubber unit in hot water before fixing it to the MAS Unit.Took the car for a spin and what can I say....amazing difference in sound, seemed quiker acceleration through the gears and seemed a lot quiker in 5th, and the sound around the 3/4000rev mark is brilliant.Great product and great service from MX5 Parts. I am now looking at replacement pedals and also a new back end exhaust system, and more in the future.Well dfone everyone at MX5 Parts.

27/04/2012 12:16:34

Chris Lea-brown

Great service from mx5parts, delivered within two days. Took me and a friend less than an hour to fit it. Had trouble fitting the cold air pipe down through the engine bay, nothing a few cable ties didn't sort out. Now, what can I say about the performance......amazing! Just took my '05 1.8 icon for a spin and the noise is incredible, deep and growly at low revs and after 4000rpm it roars! Acceleration feels much better too. Well worth the money, as a relatively cheap performance modification, its hard to beat. Next perchase? NGK long reach plugs and some performance HT leads and I'll be well on my way!5 stars, no doubt!

13/04/2011 12:16:42

raffaello sernagiotto

I fittted the kit in only 15 minutes after a carefull reading of the K&N instructions. A little oil on the rubber ring and no swet to fit it to the air box. Pls . note that the slotted hole goes toward the airbox and do not forget to put the wide washer under the bolt (not indicated in the K&N instructions.The acceleration is now better than before on my 1.6l engine, the sound is wonderfull above 4000 RPMS and i bet I got some more HP too!It is a pity not to install this inexpensive kit on any MX5!!!! Believe me.Thanks to MX5parts to be always so quick with orders processing and delivery!

22/11/2010 12:16:45

Derren Phillips

I had one of these for about 80k miles on my previous (NB) MX-5; thoroughly recommend it although I've had to replace the mounting bracket three times (hence, only four stars). (I believe the vibrating of the (quite large) filter work hardens the mild steel bracket until it becomes brittle and snaps at one of the mounting holes.)Each time, K&N promptly sent me another one free of charge, but the design is obviously flawed and has resulted in the cone itself becoming slightly damaged. Maybe a couple of oversized steel washers fitted either side would help strengthen the bracket?

14/06/2010 12:16:48

Michael Dykes

Great kit and good value. Questioned the lack of 1.8 on the kit packaging with MX 5 parts and was assured it was the right part. Dead easy to fit but the kit lacked an extra tywrap to secure the intake hose close to the filter. The car now makes a lovely noise and has slightly quicker throttle response. Thanks for the quick delivery.

20/11/2009 12:16:53

Stuart Daisley

98 Mk2 1.8s .. Excellent delivery. Simple fit if you -1. Ignore Instructions if you've got a 1.8 which say this is for a 1.6 (no mention of 1.8) However , it is definately the correct part.2. Remove the washer bottle (2 nuts & pulls out)3. Heat Rubber ring in boiling water for 5 mins before fitting to MAS sensor (softens rubber / easier fit)4. Don't do what I did & remove the connector from the temp sensor at the start of the process rather than removing the full assembly from the original air box. (you'll be left scratching your head thinking this is the wrong part for the car - a quick call to James at mx5 parts confirmed it was definately the correct part. Realised I had to removed the temp sensor probe from the air box & fit it to the connector before fitting the temp sensor probe assembly into the hole at the rear of the K@N filter.) Sound is not too noticable under 3k , increases progressively up to 5k & between 5k & 7k is just what you want from this car. I've already got a single outlet , SS , MX5 parts rear box fitted & would recomment this combination as being sporty without being brash. My car seems to rev a bit more freely & is smoother on tickover. Would I buy again knowing what I know now ? YES ...Thanks

06/11/2009 12:16:53

Martijn van Tol

Forget the regular filter! Buy this one, you won't be disappointed! Although I had to remove the windscreen wacher bottle as well (which was fairly easy) the fitting instructions were clear. May be a little more hp but WHAT A SOUND!!! From 2.000 rpm it starts to roar like nothing else. Absolute great value for money

06/04/2009 12:16:59

Fabio Sebastianelli

Suono ottimo specialmente sopra i 4500 giri, facile installazione (ho dovuto mettere il raccordo nell'acqua calda per 10 minuti prima di inserirla al MAS) ......

28/02/2009 12:17:00

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