Sport Intake K&N 57i series, 57-0648-1

These kits bring engine airflow out of the factory box by providing a large size open-air conical or round High-Flow Air Filter. The extra surface area of these open-air air filters provide even more airflow at lower restriction than a K&N O/E replacement filter which is always limited to the size of the factory air box. The larger air filter also captures and holds more dirt increasing its service life before a cleaning is required (up to 100,000 miles). The filter is then either directly attached to the engine carburetor or throttle body or indirectly through a tube assembly running from the filter to the engine. All adaptors are made from high quality materials such as steel, aluminum, silicon or reinforced nylon and ensure long life."

• K&N Guaranteed to increase horsepower
• Designed to improve throttle response and engine sound
• Free-flowing aluminum tube
• Replaces entire factory air intake system
• Lasts up to 100,000 miles before service is required (depending on driving conditions)
• Easy to install, usually in 90 minutes or less
• Washable and reusable lifetime air filter
• K&N Million Mile Limited Warranty

" Application:

BMW, 1 (E81) 118 i, 2006/09 -> 2012/09, 105/143kw/k

BMW, 1 (E81) 120 i, 2006/09 -> 2012/09, 115/156kw/k

BMW, 1 (E81) 120 i, 2006/09 -> 2012/09, 120/163kw/k

BMW, 1 (E81) 120 i, 2006/09 -> 2012/09, 125/170kw/k

BMW, 1 Kabriolet (E88) 120 i, 2008/03 -> --/--, 125/170kw/k

BMW, 1 Kabriolet (E88) 118 i, 2008/03 -> --/--, 105/143kw/k

BMW, 1 Kabriolet (E88) 120 i, 2008/03 -> --/--, 120/163kw/k

BMW, 1 Kupe (E82) 120 i, 2007/10 -> --/--, 125/170kw/k

BMW, 3 (E46) 318 i, 2001/09 -> 2005/02, 105/143kw/k

BMW, 3 (E90) 320 si, 2006/05 -> 2011/12, 127/173kw/k

BMW, 3 (E90) 320 i, 2007/09 -> 2011/12, 125/170kw/k

BMW, 3 (E90) 318 i, 2007/09 -> 2011/12, 105/143kw/k

BMW, 3 (E90) 320 i, 2005/01 -> 2007/03, 110/150kw/k

BMW, 3 (E90) 320 i, 2007/03 -> 2011/12, 115/156kw/k

BMW, 3 (E90) 318 i, 2005/09 -> 2007/03, 95/129kw/k

BMW, 3 Kabriolet (E93) 320 i, 2007/03 -> --/--, 125/170kw/k

BMW, 3 Kabriolet (E93) 320 i, 2007/03 -> 2007/08, 110/149kw/k

BMW, 3 Kupe (E92) 320 i, 2006/11 -> 2007/06, 110/150kw/k

BMW, 3 Kupe (E92) 320 i, 2007/03 -> --/--, 125/170kw/k

BMW, 3 Touring (E46) 318 i, 2001/09 -> 2005/02, 105/143kw/k

BMW, 3 Touring (E91) 318 i, 2006/01 -> --/--, 95/129kw/k

BMW, 3 Touring (E91) 320 i, 2005/09 -> --/--, 110/150kw/k

BMW, 3 Touring (E91) 320 i, 2007/09 -> --/--, 125/170kw/k

BMW, 3 Touring (E91) 318 i, 2007/09 -> --/--, 105/143kw/k

"

MAINTENANCE GUIDE

1. Use the compressed air to remove the dirt from the other side of dirty side.
2. Apply K&N cleaner onto both sides evenly. （CAUTION: THE USE OF ANY OTHER CLEANING SOLUTION OR METHOD COULD DAMAGE THE FILTER! i.e. use of water, steam, or chemicals, gasoline, transmission fluid, motor oil, lightweight oil, or diesel fuel not specifically designed to clean non-woven material air filters )
3. Allow cleaner to soak into both sides of air filer for 10 minutes; afterward use the compressed air to remove dirt and cleaner. (Repeat step 3 and step 4 until all spots of dirt are cleaned.)
4. Let the air filter dry naturally or use the compressed air to dry it.（CAUTION: OTHER DRYING METHOD COULD DAMAGE THE FILTER!）
5. Apply proper amount of K&N air filter cleaning oil evenly onto the dirt side of air filter only.（CAUTION: DO NOT OVER OIL AIR FILTER! OVER- OILING MAY INTERFERE THE PERFORMANCE OF ENGINE.）
6. Reinstall the air filter back, make sure that the intake box is securely fastened.
7. Service the air filter at least every 5,000Km to maintain optimum performance. We recommend the air filter to be serviced more often after off-road and high speed riding. Always inspect your air filter whenever you change your oil. 

"