
K&N 57-1001 Cold Air Intake for BMW E46 330i 330Ci 330Xi
by K&N
$367.99
Key Features
- Fits 2001-2005 E46 330i, 330Ci, 330Xi with M54 engine
- Reusable oiled cotton gauze filter, washable and re-oilable
- Relocates filter lower in engine bay for cooler intake temps
- Larger intake tube diameter versus restrictive factory airbox
- Watch filter-to-MAF clearance on install, misalignment causes codes
- Do not over-oil the filter - excess oil can contaminate MAF sensor
Product Details
- Brand
- K&N
- Category
- Cold Air Intakes
- ASIN
- B000NK9FHG
Check if it fits your BMW
K&N 57-1001 Cold Air Intake for BMW E46 330i 330Ci 330Xi — Overview
The K&N 57-1001 is a complete cold air intake kit designed to fit the E46 330i, 330Ci, and 330Xi from 2001 to 2005, all running the M54 inline-six. It replaces the factory airbox and intake tract with a larger-diameter tube and K&N's reusable oiled cotton gauze filter, pulling air from lower in the engine bay where temps are cooler than what the stock setup sees. The idea is straightforward - more air volume, less restriction, modest gains in throttle response and sound.











