2021 Harley-Davidson FLHXS Street Glide Special Intake Upgrade Parts
66 parts listed for your 2021 Harley-Davidson FLHXS Street Glide Special for a complete intake upgrade. Choose your trim on product pages to confirm exact fit. This is an easy DIY project - estimated 30-60 minutes.
Cold Air Intakes
(50)primary
K&N
Part # RK-3954B
K&N 17-18 Harley-Davidson Road Glide Hammer Black Street Metal Intake System
$308.97
K&N
Part # 57-1139
K&N 17-18 Harley-Davidson Touring Models Performance Air Intake System
$218.97
K&N
Part # 57-1139S
K&N 17-18 Harley-Davidson Touring Models Performance Air Intake System Silver
$218.97
K&N
Part # 63-1138
K&N 2017 Harley-Davidson H/D Touring Models AirCharger Performance Intake - Black
$428.97
K&N
Part # 63-1138C
K&N 2017 Harley-Davidson H/D Touring Models AirCharger Performance Intake - Chrome
$428.97
K&N
Part # 63-1139
K&N AirCharger H/D Touring Models 2017-2018 Performance Air Intake System
$218.97
K&N
Part # 57-1138C
K&N FIPK H/D Touring Models 2017 Chrome Performance Air Intake System
$376.97
K&N
Part # 57-1138
K&N FIPK H/D Touring Models 2017-2018 BLACK Performance Air Intake System
$323.97
Performance Air Filters
(16)primary
BMC
Part # FM01084
BMC 09-13 Harley-Davidson Touring FLHTCUTG Tri Glide Ultra Classic
- Type
- Engine
$112.38
Cometic Gasket
Part # C10176
Cometic Harley-Davidson Milwaukee 8 Airbox To T/B .031inFiber, All CVO Models,1Pk
- Type
- Engine
$6.48
Cometic Gasket
Part # C10207
Cometic Harley-Davidson Milwaukee 8, Air Cleaner To Throttle Body Seal - 4PK
- Type
- Engine
$33.19
K&N
Part # HD-1717
K&N 2017 Harley-Davidson FLHR Road King Replacement Air Filter
- Type
- Engine
$91.47
Performance Machine
Part # 0206-2140-BM
Performance Machine Jet Air Cleaner - Contrast Cut
- Type
- Engine
$673.93
Performance Machine
Part # 0206-2156-CH
Performance Machine Vision Air Cleaner W/Bezel - Chrome
- Type
- Engine
$673.93
Performance Machine
Part # 0206-2139-B
Performance Machine Air Cleaner - Black Ano
- Type
- Engine
$523.93
Performance Machine
Part # 0206-2139-CH
Performance Machine Air Cleaner - Chrome
- Type
- Engine
$507.43
Intake Upgrade for Other Harley-Davidson FLHXS Street Glide Special Years
Other Jobs for Your 2021 Harley-Davidson FLHXS Street Glide Special
Frequently Asked Questions
What parts do I need for a intake upgrade on my 2021 Harley-Davidson FLHXS Street Glide Special?
A complete intake upgrade on the 2021 Harley-Davidson FLHXS Street Glide Special typically requires cold air intakes, performance air filters. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
How long does a intake upgrade take on a 2021 Harley-Davidson FLHXS Street Glide Special?
A intake upgrade typically takes 30-60 minutes and is rated as easy difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a intake upgrade myself?
Yes! A intake upgrade is an easy DIY project that most people can do with basic hand tools. It's a great way to save money on labor costs.
Are these parts guaranteed to fit my 2021 Harley-Davidson FLHXS Street Glide Special?
These parts are listed for the 2021 Harley-Davidson FLHXS Street Glide Special using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make intake upgrade parts for the 2021 Harley-Davidson FLHXS Street Glide Special?
We carry intake upgrade parts from trusted brands including K&N, BMC, Cometic Gasket, and Performance Machine. Filter by brand to find your preferred manufacturer.
How much does a intake upgrade cost for a 2021 Harley-Davidson FLHXS Street Glide Special?
The cost of a intake upgrade for the 2021 Harley-Davidson FLHXS Street Glide Special depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.