Anyone fitted one? How easy or difficult.

 

I have two of 'em, been in for at least three years and zero problems whatsoever. I've only cleaned them once, and there was barely any dirt. Of course, I don't put on a TON of miles... maybe four thousand a year.


They are no different than using OEM, jack up one corner of the car, steer hard to one direction and undo a few screws, pull the liner out of the way and swap 'em out.


Your XK will only have the one, so half the job!

 

The workshop manual shows two for the XK.

 

Maybe I'm naive, buy if there's no difference between the K&N and factory, why bother?

 

The link below is the definitive K&N thread. Lots of pros and cons and reasons to not buy the hype. See my post #12, among others.
https://www.jaguarforums.com/forum/x...ilters-119498/

Your money, your car, your choice.

 

I would stay away from K&N. Jaguar has done a lot with the intake and filters used. K&N is just wasting money.

BMC Filter is the step up. Granted they are not cheap, but that's what's used in racing and promoted for several fancy marques.

 

OK Thanks, will not pursue.

 

I just (yesterday) put BMC filters in my f type (correction, I paid someone else to do it for me because it it a production to do it). It has made a subtle but palpable difference to the engine noise, with a bit more supercharger whine. I'm happy with the result, but it isnt enormously different probably because the f type is pretty noisy to start with. It might have a more noticeable difference on the XK and XKR.

 

I had a BMC carbon dynamic intake fitted to my old X100, I think I paid £400 or thereabouts for it.

Appreciate that the X100's stock filter was plastic and in the engine bay in perhaps the hottest place. albeit it took the cold air from the wing, but naturally heated up in a box that was as hot as your engine with any engine it's COLD air that matters and any system with lots of plastic (or worse still metal) will conduct transfer the heat and defeat the object of a CAI

I think it made a difference, but there's no point getting lots of cold air in if the car can't exit/pass it with maximum efficiency, in my case custom made manifolds and a straight through balanced exhaust.

I suspect where the current 5l filters are the temps will be considerably less and constant (but could be wrong) so whilst I have been a big fan of Apexi and BMC I'll just be using stock paper filters on mine for now.

The debate we SHOULD be having is 'are aftermarket paper filters better/same/worse than OEM?'

My experience with my Audi was that when at a specialist he weighed my aftermarket filter, to the gram it was the same weight as OEM with the same filter material and same number of pleats, the only difference he could see was the 4 x silver rings stamped on the OEM. Price difference was I could by 11 of the Mann filters £5) for the same as a single OEM, So I just figured I'd change them more often (every 6k miles) as a completely new filter will without doubt pass more air and catch more crud.

PS: Soz to resurrect an old post