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63-1125
$287.99 USD
MSRP $502.49 42.7% Off
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K&N 63-1125 Air Intake

Performance Products > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   16 Customer Reviews
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Aluminum tube with high quality black finish
  • Washable and reusable lifetime air filter
  • Not legal for sale or use in California
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • K&N Million Mile Limited Warranty
K&N AirCharger Air Intakes replace the restrictive stock OE air cleaner with a K&N High-Flow Air Filter and mandrel-bent aluminum intake tube. The efficient design provides your Harley with significantly more airflow, resulting in additional power. These air intakes come with a billet aluminum throttle-body mounting plate and mounting hardware. Each of these air intakes comes with a washable, reusable K&N high-flow air filter, backed by the Million Mile Limited Warranty. Installation is so easy, most intakes can be installed in 90 minutes or less. The sleek styling gives your Harley that coveted custom look while increasing performance.

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Product Specifications

Estimated Horsepower Gain7.78 HP @ 4953 RPM
Replacement FilterRE-0960
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Warranty1,000,000 Miles/10 Year
Product StyleMotorcycle Intake System
Air Filter Height6 in (152 mm)
Air Filter Outlet ShapeRound
Intake Pipe Color / FinishBlack
Intake Pipe MaterialAluminum
Street Legal In All US States No
TUV Approved (Europe)No
Clamps Included2
Clamp StyleRegular
Clamp MaterialStainless Steel
Weight3 lb (1.4 kg)
Product Box Height4.88 in (124 mm)
Product Box Length11.75 in (298 mm)
Product Box Width9.5 in (241 mm)
California RestrictedNot legal for sale or use in California
Couplers IncludedNone
Mounting Hardware IncludedYes
Horsepower gains based on similar vehicle dynamometer test. Results will vary.
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

K&N 63-1125 Air Intake Product Reviews

Wednesday, May 30, 2018 - Part 63-1125
Absolutely love this setup. 2007 Harley Street Bob. Substantial differences noticed. Acceleration, performance, engine sound. Would definitely recommend.

Robert Badendyck
Niagara Falls, New York
Monday, May 21, 2018 - Part 63-1125
Good service, great product which looks and works great on my bike, easy to fit with enclosed instructions, very happy with this product.

Philip Gale
Guernsey, Channel Islands, Un, United Kingdom
Wednesday, November 29, 2017 - Part 63-1125
Fast easy ordering. Competitive pricing + free shipping. Fast delivery. What's not to like? Couldn't be happier with the purchase and it's going to look nice on my Harley Davidson Fat Boy.

Robert Schultz
New Hope, Minnesota