If I get this item Do I need fp3?

If you have a good free flow exhaust and this k&n setup I recommend having one so you don't risk leaning out your bike. Otherwise if all you do is change the filter and housing then, no.

Does this affect riding leg position?

Yes and no. My leg rests up against it while I ride vs the stock one. But you don’t even notice it. That’s on a 05 Electra glide.

Is there a rain sock for it?

No K&N does not make a rain sock for this intake.

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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K&N Cold Air Intake System: Powersports High-Flow Air Filter, RK-3950 | Fits Select 2013-2015 HARLEY DAVIDSON: FLSTN Softail Deluxe/FLSTC Herritage Softail Classic (See Product Description)

Product ID: 40636895

Details

Brand
K&N
Fit Type
Vehicle Fit
Number of Items
1
OEM Part Number
RK-3950
Product Grade
Performance

🔥Guaranteed horsepower & torque boost

🛠️Easy 60-min installation kit

🇺🇸Proudly made in the USA

€ 486.76

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🏍️ Elevate your Harley’s heartbeat — power, sound, and style in one sleek intake!

UNLEASH RAW POWER - Experience a guaranteed increase in horsepower and torque with a high-flow, less restrictive air path designed specifically for your Harley.
PLUG PLAY UPGRADE - Transform your ride in under an hour with a vehicle-specific fit and all-inclusive installation kit—no mechanic required.
BUILT FOR THE LONG HAUL - Enjoy a reusable, high-flow cotton air filter that only needs cleaning every 100,000 miles, backed by a no-hassle lifetime warranty.
DYNO TESTED PERFORMANCE - Trust in precision-engineered airflow improvements validated by wheel-based dynamometer testing for real-world gains.
COMMAND THE ROAD WITH SOUND - Feel the thrill as your engine growls on acceleration, delivering an unmistakable auditory signature that turns heads.

The K&N Cold Air Intake System RK-3950 is a premium, dyno-tested upgrade designed for 2001-2017 Harley Davidson models. It delivers a guaranteed boost in horsepower and torque by optimizing airflow with a high-flow, reusable cotton air filter and custom heat shield. Proudly made in the USA, this intake system enhances engine sound, improves throttle response for towing and daily driving, and installs easily in about 60 minutes without voiding your factory warranty.

Specifications

ASIN	B06WLHPTKB
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#1,153,435 in Automotive ( See Top 100 in Automotive ) #1,131 in Automotive Replacement Air Intake Filters
Brand	K&N
Brand Name	K&N
Customer Reviews	4.6 out of 5 stars 50 Reviews
Fit Type	Vehicle Specific Fit
Global Trade Identification Number	00024844364647
Included Components	Air Filter^Back Plate^Air Scoop^Air Scoop Base^Breather Bolt (2)^Literature Pack^Parts Kit
Item Type Name	Intake System (Harley Davidson)
Item Weight	4.7 Pounds
Manufacturer	K&N Engineering
Manufacturer Part Number	RK-3950
Manufacturer Warranty Description	3 Months
Model Number	RK-3950
Number of Items	1
OEM Equivalent Part Number	RK-3950
OEM Part Number	RK-3950
Product Grade	Performance Part
UPC	024844364647
Unit Count	1.0 Count

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