57I-4000 Image

K&N 57I-4000 5.0 out of 5 stars 1 Customer Review
57i Series Kits > Performance Intake Kit

 List Price: $362.28
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57I-4000
 
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K&N 57i Generation II Induction Kits are built primarily for European vehicles. They come with K&N's Million Mile 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. 57i Intakes are not legal for use in California and other US States adopting California emission standards. [MORE]
Available Information
Installation Instruction Sheet
57I-4000 Vehicle Applications


Part 57I-4000 Product Specifications
Product Style: 57i Series International Kits
Replacement Filter: RC-4550
Street Legal In All US States: No
TUV Approved (Europe): No
Type: Gen II
Intake Pipe Color / Finish: Black
Base Outside Diameter: 5.375 in (137 mm)
California Restricted: Not legal for sale or use in California
Flange Inside Diameter: 4 in (102 mm)
Flange Length: 0.625 in (16 mm)
Flange Type: Centered
Height: 6 in (152 mm)
Top Material/Finish: Chrome
Top Outside Diameter: 4.5 in (114 mm)
Top Style: Metal
Weight: 9.8 lb (4.4 kg)
Product Box Length: 22.25 in (565 mm)
Product Box Width: 14.25 in (362 mm)
Product Box Height: 12.5 in (318 mm)



Accessories
99-5050.jpg
99-5050 - Filter Care Service Kit - Squeeze
RC-4550.jpg
RC-4550 - Replacement Filter
RF-1023DK.jpg
RF-1023DK - Air Filter Wrap
RF-1023DL.JPG
RF-1023DL - Air Filter Wrap
RF-1023DR.jpg
RF-1023DR - Air Filter Wrap

Product Reviews      Review part 57I-4000

 Bought this for my 2002 Subaru Legacy. First off this will fit our beloved 3rd Gens!! The package comes with all the mounting gear needed to make this work. Plus it has couplers and clamps to ensure a snug fit to the breather hose and throttle body. The L brackets will help secure the heat shield. Just take your time to check fitment and overall stability. Finally our air flow sensors are MAP based so no worries with a check engine light or bad idling issues. Car background includes [brand] headers, high flow cat, and customer 2.5 cat back exhaust.
Jason Swartzbaugh, Pennsylvania

K&N 57I-4000 fits the following:
2000 SUBARU IMPREZA 2.0L H4 F/I - 125BHP Street Legal In All US States: No TUV Approved (Europe): No
1999 SUBARU IMPREZA 2.0L H4 F/I - 125BHP Street Legal In All US States: No TUV Approved (Europe): No