Air filter for my b9 s4

philly2072

Registered User
hi can anyone help
Trying to get a new upgraded air filter for my b9 s4 but to no luck . k&n give me a few options but when I put my model of car in the day it doesn’t fit ...
Has anyone had any luck getting one ..if so what’s the model number .
Please help as it’s starting to get on my tits.
 

JonChalk

Registered User
K&N website says E-0646 for the S5. Same thing on an S4?

Can't quite bring myself to pull the trigger until the weather gets warmer.
 

RAF_S7

Well-Known Member
Gold Supporter

JonChalk

Registered User
Having opened the airbox, and knocked the crap off the paper one, E-0646 is the one for a B9, as per the website.
 

EssVier

There ain't no party like an S-Club Party.
Nowhere has 0646 in stock, been waiting for months!
 

zippster

Registered User
bMC and induction pipe thing made a noticeable improvement in noise and bum dyno.. can find my posts about it at the mo..
 

Rogier140

Registered User
I have got the VWR
 

zippster

Registered User

EssVier

There ain't no party like an S-Club Party.
BMC air filter part number FB960/04
This can be ordered from eurocar parts 909440541 10 days delivery and 25% off at the moment.
This just arrived, does make a decent sound difference, and a few more pops for good measure! Will give it a proper shakedown tomorrow!
 

mrobbie

Registered User
Other than hearing more turbo spool and more noise when I lift off, not any other noticeable difference

RamAir CC-501-90... could have been done with one slightly shorter in length. This fitted, but only just!

3ee4543a47a8404feda236808149d791.jpg



Sent from my iPad using Tapatalk
 

mrobbie

Registered User
Fits in the standard box - so that is it upside down


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philly2072

Registered User
I have finally got hold of a k&n air filter for the s4 and what a difference...much more smoother through the gears ,more responsive and more whistle from the turbo..
It is a better air filter than the BMC ..
I have had the BMC Filter in for about 4 weeks which was a good filter but is not the best when setting off always seemed very jerky ,on a good note it made the car a lot more noisy though
The K&N is just a better all rounder in my opinion
 

A12RNX

Registered User
I have finally got hold of a k&n air filter for the s4 and what a difference...much more smoother through the gears ,more responsive and more whistle from the turbo..
It is a better air filter than the BMC ..
I have had the BMC Filter in for about 4 weeks which was a good filter but is not the best when setting off always seemed very jerky ,on a good note it made the car a lot more noisy though
The K&N is just a better all rounder in my opinion

Was there much in size difference? Also price?
 

Docdunc

Registered User
I have finally got hold of a k&n air filter for the s4 and what a difference...much more smoother through the gears ,more responsive and more whistle from the turbo..
It is a better air filter than the BMC ..
I have had the BMC Filter in for about 4 weeks which was a good filter but is not the best when setting off always seemed very jerky ,on a good note it made the car a lot more noisy though
The K&N is just a better all rounder in my opinion

Can you let me know where you bought this from?

I used to have a K&N air filter on my Honda S2000 , and thought it was great
Cheers D
 

Filipão

Registered User
Unbelievable how K&N UK accepts your PayPal payment for an air filter they do NOT stock.

Warned by your above discussion I posed the question before ordering.

This was their reply:

Quote:

"Good morning
We are currently waiting for this filter to be manufactured and shipped from the USA, eta is expected to be about 8 weeks I’m afraid
Thanks
Sam

Samantha Patten

Sales & Customer Services

K&N Filters (Europe) Limited

Unit 9 Ashville Way

Ashville Industrial Estate

Sutton Weaver

Runcorn

WA7 3EZ

Telephone +44 (0) 1925 636950

Fax +44 (0) 1925 418948

Email samanthap@knfilters.com

Website www.knfilters.co.uk

Unquote.
 

philly2072

Registered User
Unbelievable how K&N UK accepts your PayPal payment for an air filter they do NOT stock.

Warned by your above discussion I posed the question before ordering.

This was their reply:

Quote:

"Good morning
We are currently waiting for this filter to be manufactured and shipped from the USA, eta is expected to be about 8 weeks I’m afraid
Thanks
Sam

Samantha Patten

Sales & Customer Services

K&N Filters (Europe) Limited

Unit 9 Ashville Way

Ashville Industrial Estate

Sutton Weaver

Runcorn

WA7 3EZ

Telephone +44 (0) 1925 636950

Fax +44 (0) 1925 418948

Email samanthap@knfilters.com

Website www.knfilters.co.uk

Unquote.
I had the same thing ..gave up after 4months and got my money back ...
 

philly2072

Registered User
Unbelievable how K&N UK accepts your PayPal payment for an air filter they do NOT stock.

Warned by your above discussion I posed the question before ordering.

This was their reply:

Quote:

"Good morning
We are currently waiting for this filter to be manufactured and shipped from the USA, eta is expected to be about 8 weeks I’m afraid
Thanks
Sam

Samantha Patten

Sales & Customer Services

K&N Filters (Europe) Limited

Unit 9 Ashville Way

Ashville Industrial Estate

Sutton Weaver

Runcorn

WA7 3EZ

Telephone +44 (0) 1925 636950

Fax +44 (0) 1925 418948

Email samanthap@knfilters.com

Website www.knfilters.co.uk

Unquote.
You can get the on eBay if you want to wait a bit as the are frim overseas
 
I have the BMC filter makes a much better noise. I also have an ECS inlet pipe.
What benefit does the ECS inlet pipe give?
 

SMI77

Australia
What benefit does the ECS inlet pipe give?
Other brands can give up to 19bhp. Armed with this + DTUK tunes gives the B9 S4 RS4 territory power with more torque.

Just installed a BMC FB960/04 replacement filter. The bum dyno meter did not move, but a little smoother and perhaps a tad quieter. Did not want the K & N which apparently is not only noisier but 66% dearer.
The instal did include vacuuming an absurd amount of munched leaves out of the OEM air filter box. Can't believe that is just since the last stealer service.
 
Last edited:

cuke2u

Registered User
Remind me to check for munched leaves in my filter box before the trip we are making over Easter. Also make sure there isn't something actually munching them ;-)
 

Boosted_Six

Registered User
Other brands can give up to 19bhp. Armed with this + DTUK tunes gives the B9 S4 RS4 territory power with more torque.

Just installed a BMC FB960/04 replacement filter. The bum dyno meter did not move, but a little smoother and perhaps a tad quieter. Did not want the K & N which apparently is not only noisier but 66% dearer.
The instal did include vacuuming an absurd amount of munched leaves out of the OEM air filter box. Can't believe that is just since the last stealer service.

I'm a huge sceptic on any aftermarket intake that claims more air in, without needing to re-calibrate the air flow sensor.

This is a perfect example. The OEM S4 intake is already a short intake run with a large surface area cone filter and external air snorkel via the grille. If the MAF is still in range on the grammes per second of air its expecting to see, guess what, you ain't getting more air or more power (beyond un-noticeable single digit BHP at best).
 

A12RNX

Registered User
To be honest I don’t think it makes any difference but looks a lot nicer that the Henry the hoover looking one.
 

cuke2u

Registered User
Apologies for being a tad off topic but no sign of any critters having munched these leaves:
20190405_143427-1512x2016.jpg
 
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