• K&N Intake System-Harley Davidson (RK-3951S)
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K&N

K&N Intake System-Harley Davidson (RK-3951S)

K&N Intake System-Harley Davidson (RK-3951S)

RK-3951S

£310.00 GBP
£310.00 GBP
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K&N Street Metal Air Intake Systems for Harley Davidson® motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High-Flow Air Filter and a high-volume cast aluminum housing. If you're looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high-flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less. The K&N air filter is washable, reusable, pre-oiled and ready for installation. This intake system features a matte silver housing with polished fins. Internal breathers provide a sleek, clean appearance. This air intake has classic styling with a savage appeal.
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Cast aluminum high-volume, performance air intake housing in silver
  • Washable and reusable K&N High-Flow cotton air filter that provides outstanding performance and protection
  • Integrated internal velocity stack
  • Built-in breathers replace external OE breathers
  • Easy to install, usually in 90 minutes or less

Overview

K&N Street Metal Air Intake Systems for Harley Davidson® motorcycles replace the restrictive stock OE air cleaner with an oversized K&N High-Flow Air Filter and a high-volume cast aluminum housing. If you're looking for an aggressive appearance but want a significant increase in airflow, resulting in more power, this high-flow air intake system is exactly what your Harley needs. Installation is so simple, it can usually be done in 90 minutes or less. The K&N air filter is washable, reusable, pre-oiled and ready for installation. This intake system features a matte silver housing with polished fins. Internal breathers provide a sleek, clean appearance. This air intake has classic styling with a savage appeal.

Product Details


Guaranteed to increase horsepower*
Designed to improve throttle response and engine sound*
Cast aluminum high-volume, performance air intake housing in silver*
Washable and reusable K&N High-Flow cotton air filter that provides outstanding performance and protection*
Integrated internal velocity stack*
Built-in breathers replace external OE breathers*
Easy to install, usually in 90 minutes or less*
*

Specifications

  • Air Filter Color: Red
  • Air Filter Height: 2.469 in (63 mm)
  • Air Filter Material: Cotton Gauze
  • Air Filter Washable: Yes
  • CARB EO Number: D-269-59
  • Color / Finish: Red Filter
  • Silver Housing
  • Estimated Horsepower Gain: 6.04 HP @ 4907 RPM
  • Mounting Hardware Included: Yes
  • Overall Height: 3.25 in (83 mm)
  • Package Material: Paperboard
  • Package Type: Box
  • Product Box Height: 4.88 in (124 mm)
  • Product Box Length: 11.75 in (298 mm)
  • Product Box Width: 9.5 in (241 mm)
  • Product Style: Motorcycle Intake System
  • Product Weight: 4.90 lb (2.23 kg)
  • Replacement Filter: E-3987
  • Street Legal In All US States: See Vehicle Applications
  • Top Material: Silver Powder Coated
  • TUV Approved (Europe): No
  • Warranty: No-Hassle Lifetime Limited
  • Weight: 4.9 lb (2.2 kg)

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