K & N air filter and other questions
 

Hi all..I'm new to the forum and a proud new owner of a 2008 A4 s-line quatro 2.0T. lots of questions but can we start with this....has any one used tha K&N air filter in these cars ...better worse ??? performance /fuel economy ...WARRANTY ???? also how do i know if i have a B7 or B8...BTW..love the car...should have done it yrs ago:D
Ed

Re: K & N air filter and other questions
 

yours is a b7 a4, i have the k and n air filter in my b7 a4, no noticable difference in any aspect really, they claim theyre produce more horse power / improve fuel economy.. if they do, its such a small difference that its insignificant.. if you were to switch to a k and n cone air filter, thats when youll notice the difference, youll hear a bit of a blow off sound thats not as loud as if you were to actually install a bov. i wouldnt suggest throwing a cone filter in your car though because space is limited, and youd be eliminating the piping for your cabin filter, lots of ppl put in carbino kits

Re: K & N air filter and other questions
 

I like the K&N filters. If you plan to keep your car for some time. Instead of spending $40 every six months for a new air filter (that is for a C5 A6) a K&N regular filter was a little more than $100. The cleaner kit is only $15, lasts about 5 cleanings. So it is worth it dollar wise for maintenance.

I have a cold air intake with cone on my A6, the only thing I noticed is turbo sound.

K&N warrenty is awesome. I have a Chev truck and I got a cold air kit for that, the tube cracked from filter to intake. i called them thinking I had to buy a replacement. the rep at K&N said its free and they will pay for the shipping. Awesome.

Re: K & N air filter and other questions
 

Be sure not to over oil it!

Re: K & N air filter and other questions
 

If you really are serious about increased performance, best bang for buck is to spend the money on a chip tune - search for Revo/APR/GIAC/Unitronic; tons of info around on that upgrade. ;)