Slight hesitation under full throttle?

[Space Cadet]

I’ve just posted a similar thread in the JCW section, what if any difference do the leads make, there is also a ‘spark-generator’ thing available, are either of these worth it to a 16k mile car?

[Richard Crofts]

The stock MINI leads are a bit temper-a-mental! Basically the quality is not great and if you take them on an off a few times they seem to get damaged and so they don't let a decent spark. One way to resolve it was to fit the JCW leads (they are blue not the stock black), or buy Magnecor leads. I got race spec reds as my cars fairly tuned (plus I like red, as Dave will grimace and nod in agreement of )

Unless you have a problem again I'd not worry too much, just bear in mind to change the plugs every now and then and look at the leads if you have problems and yours runs stock ones

[TimG]

Pulled the air filter out today to have a look & IT WAS ABSOLUTELY BLACK. Covered in muck, flies and road grime! Surprised if any air was actually getting past at all! .. Cant believe that MINI dont even look at this until 40k as mines only done 25k at the moment!

Hoovered it out and replaced it but need to get a replacement asap as Im sure this has to be affecting economy/ performance!

Next question, is it worth getting a performance panel or just replacing it with the stock paper one?

[Space Cadet]

Upgrading panel filters will only make a small difference, but at the end of the day they do improve things a little and will probably cost less than an OEM paper filter so it is worth doing.

I’ve always preferred Pipercross, but everyone has their favourites. Have just fitted an ITG ‘cylinder’ filter to my JCW, I believe they also do panel filters.

[TimG]

Well, just called BMW and a new stock filter is only £5.96 + VAT so unless someone can convince me of spending £30-40 on a foam performance one? Or can point me in the direction of somewhere that doesn't charge the earth for them??.........

[Space Cadet]

Well, I eat my words, that sounds very reasonable, a lot less than I have paid for previous VW’s/Audi’s.

[TimG]

, Yeah, Even I was surprised, was expecting like £15 or something!

[Mosposco]

I pulled the filter out my 32k '05 MC and as suspected, it was totally black, so I replaced it with a Pipercross one. Made a noticeable difference, but then just a clean, new filter probably would have too! It does add a nice bit of induction roar though, if you like that sort of thing....

[TimG]

Wouldn't say no to some more noise.... but would prefer an increase in economy to be honest!