K&N Performance Air Intake System – 57I-1001
BMW
- 323i · 2.5L L6 Gas1995–1999
- 323Ti · 2.5L L6 Gas1997–2000
- 325i · 2.5L L6 Gas1991–1999
- 328i · 2.8L L6 Gas1995–1999
€429.99 Incl. VAT
Delivered in 10 days
- K&N Filter Cold Air Intakes
- Vehicle Fitment: BMW 323i, BMW 323Ti, BMW 325i, BMW 328i, Street Legal in All US States: No
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K&N Filter
K&N was founded in 1969 in Riverside, California, by Ken Johnson and Norm McDonald, the K and the N of the name. Its filters use washable, reusable oiled cotton gauze, cleaned and re-oiled with a service kit rather than thrown away, and the range here is built on them.
It covers replacement panel filters, complete Performance Air Intake Systems, universal clamp-on, round and conical filters, cabin air filters, crankcase breather filters, carburettor filters and fuel filters. The cleaning and oiling kits, foam wraps, top plates and clips that go with them are listed too.
K&N parts are listed by part number and filter type rather than by car. If you are replacing a K&N filter, its part number is the quickest route; for a universal filter, work from the neck diameter and the space available.
Among the intake brands on TrackToolFactory, K&N has the broadest mix of filter types, from engine and cabin air to breathers, carburettors and fuel. If you prefer a filter that is washed without oil, another panel filter range here uses dry synthetic media.
Talk to a real motorsport specialist.
EU-based, motorsport-experienced. We'll walk through your application before you buy.
Description
K&N 57i Generation II Induction Kits are built primarily for European vehicles. They come with K&N's No-Hassle Lifetime Limited Warranty™. These intake kits use only non-metallic rotationally molded tubes that can reduce air temperature and decrease intake sound over a metal tube. Restriction can exist BETWEEN an air filter and the engine reducing the benefit of a K&N Air Filter alone. The weakest link in the airflow chain robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the engine. K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into POWER.
Delivered in 10 days

K&N Filter
K&N was founded in 1969 in Riverside, California, by Ken Johnson and Norm McDonald, the K and the N of the name. Its filters use washable, reusable oiled cotton gauze, cleaned and re-oiled with a service kit rather than thrown away, and the range here is built on them.
It covers replacement panel filters, complete Performance Air Intake Systems, universal clamp-on, round and conical filters, cabin air filters, crankcase breather filters, carburettor filters and fuel filters. The cleaning and oiling kits, foam wraps, top plates and clips that go with them are listed too.
K&N parts are listed by part number and filter type rather than by car. If you are replacing a K&N filter, its part number is the quickest route; for a universal filter, work from the neck diameter and the space available.
Among the intake brands on TrackToolFactory, K&N has the broadest mix of filter types, from engine and cabin air to breathers, carburettors and fuel. If you prefer a filter that is washed without oil, another panel filter range here uses dry synthetic media.
Talk to a real motorsport specialist.
EU-based, motorsport-experienced. We'll walk through your application before you buy.








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