bmw e36 325 air filter?

Question

Wha are the advantages of fitting an after market air filter(k&n etc)?is it worth it?Thanx

Answer 1

There're 2 types of aftermarket filters. A drop-in type which uses your factory airbox, and a cold-air-intake type; which replaces your factory airbox and ductwork.

The only advantage of adding an after market drop in filter is that you won't need to keep buying new filters.

Adding a Cold Air Intake will give you a few extra HP at the very top end... but it depends how much time you spend driving at the very top end, and whether you feel the few HP is worth that money. On regular driving, it's no use, and it also creates more noise.

Answer 2

they're pretty good for Bmw's....
My mate had one put on a jag... yeah they are ok....

K&N’s lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. K and N make over 1,200 different replacement air filters for virtually every vehicle on the road.

These filters are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple.

Simply remove the disposable air filter and replace it with a K&N, there is NEVER any cutting or fitting required.

High Air Flow with Excellent Filtration
Designed to Increase Horsepower and Acceleration
Washable and Reusable
Will NOT Void Vehicle Warranty
Lasts up to 50,000 miles before cleaning is required depending on driving conditions
K&N Million Mile Limited Warranty®
Emissions Legal in all 50 US States.
Economical, a K&N Air Filter Will Last the Life of Your Automobile, Motorcycle, or ATV
Works with Original Equipment Manufacturer Vehicle Electronics
Environmentally Friendly, K&N Reusable Air Filters Reduce the Volume of Disposable Air Filters that end up in the Nation's Landfills

Answer 3

For BMWs, there isn't much gain due the fact that the engine runs pretty hot. If you want any kind of performance gain, you would need to create a heat shield around the air filter. Even after that, you would be lucky to gain few HP.

Don't waste your money. save the money and get yourself nice sport sprint exhaust.

Answer 4

It makes the engine breathe better.
When you want to get more power out or an engine.
You first have to understand how it works.
Petrol and air thrown in a small place/ and a spark equals a bang which shoots a piston up and then down.
Buy putting an air filter (or element) that lets more air thro increases the air volume that enters the combustion chamber.
equals bigger bang.
Equals more power.
Or equals/ making the exhaust gases flow faster.

Answer 5

next to no advantages as you have a performance vehicle anyway