K&N Cold Air Intake System: High-Flow Air Filter, Increase Performance & Acceleration: Compatible with 2014-2015 Audi: A4, A5, 69-9508T

Feel and hear big difference

This will fit both Audi A4/A5 b8/b8.5 but is specifically engineered for the b8.5 A4. This will result with a slightly loose fitting for other applications but can be fix easily.

If you are purely looking for turbo noises this will do it. Can hear the turbo spool and the "blow off".Instructions were okay and good enough to install.I expected more for fitment with K&N. Some pieces didnt fit together correctly. They didnt supply all the necessary bolts for the installation. One bolt that wasnt included was a M5 which is a rather uncommon bolt for the common consumerMy mileage went down by about 3mpg. Im unsure whether this is from the intake however. Around the same time I took off some of the plastic underneath the car due to it being broken and havemt had a chance to replace it yet. Id assume the plastic is responsible for atleast some of the mileage drop.If you so get any power it isnt noticable. I purely did it for turbo noises.Overall i would buy again but i did expect more from K&N.

Good price made perfect fit

I really wanted to love this cold air intake for my Audi. It fit perfectly, however, the way it is constructed, it leaves room for unwanted air to be sucked in. It does not seal up to where the air is brought into the vehicle. Hence, the reason I had to use gorilla tape. You can see the tape in the picture… It really is a shame because it sounded amazing when I had it installed.

Installed on my 2013 Audi A4 2.0.Makes my car sound more aggressive than it is, which I like. Definitely worth it.

I expected more from K&N. I have the CAI on my 2014 RAM 1500, so I bought the same brand for my 2015 Audi A4. The installation on these isn't hard, but things just weren't lining up great. The worst part was the amount of tension on the MAF sensor plug. It was so much tension, that it actually snapped the tab off of my MAF sensor, leaving me with needing to buy a brand new MAF sensor. This was the worst $200 I've ever spent on my vehicle. I want my money back and to go back to stock.

My service interval was coming up on my A5. I've always bought the drop in filters, thought I'd give this one a try.Fairly simple install. Instructions with pictures ooOo.Makes a cool noise. Almost like a bov. Almost...The one negative for me was one of the screws would not thread. Not a big deal, but slightly annoying.