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K&N Drag Racing Scoop Air Filters and Racing Cone Air Filters

K&N XStream® Air Flow Assemblies, Filters, and Filter Tops

Now you can protect the motor in your drag car from dust and debris on the track and in the pits with these high flow air filters. These performance air filters are engineered to provide maximum airflow and protection.


Inside Scoop Mount Air Filters

Harwood 3175-15 Scoop Filter 28-4135

The filters below mount inside the front lip of the scoop and are held in place with Dzus fasteners. Oval dual element filter fits the Harwood™ scoop model 3175-15. Round dual element filter fits the Quarter-Max hood scoop.

Harwood 3175-15 Scoop Filter - 28-4135
Harwood 3160, 3161, 3164 & 3166 Scoop Filter; Door Car (15" Deep) - 28-4145
Harwood 3160, 3161, 3164 & 3166 Scoop Filter (same as 28-4145 except 9-1/8" deep) - 28-4150
Harwood Scoop 3152 Filter; Rail Dragster - 28-4155


Harwood Scoop 3182 Filter 28-4180 for Door Car

Quarter-Max RJF1 Scoop Filter - 28-4140
Harwood Scoop 3182 Filter; Door Car - 28-4180
Quarter-max RJF1 Scoop Filter (same as 28-4140 except 11-5/8" deep); Door Car - 28-4185


Don Davis Scoop Filter 6" depth 28-4200

Don Davis Scoop Filter 10" depth - 28-4195
Don Davis Scoop Filter 6" depth - 28-4200


K&N NHRA Pro Stock Composite Hood Scoop Filter 28-4210

K&N NHRA Pro Stock Composite Hood Scoop Filter - 28-4210


Base Mount Scoop Air Filters

K&N Composite NHRA Scoop Air Filter 28-4215

Hood Scoop Air Filter 28-4215
Used with K&N Composite NHRA Scoop part # 100-8505, 100-8512 & Harwood 3158 Scoop


X-Stream Top Assembly 66-3300R

X-Stream Top Assembly 66-3300R
Used with K&N Composite NHRA Scoop part # 100-8505 & Harwood 3158 Scoop


X-Stream Top Assembly 66-3310R

X-Stream Top Assembly 66-3310R
Used with K&N Composite NHRA Scoop part # 100-8505 & Harwood 3158 Scoop


X-Stream Top Assembly 66-3320R

X-Stream Top Assembly 66-3320R
Used with K&N Composite NHRA Scoop part # 100-8505 & Harwood 3158 Scoop


X-Stream Top Assembly 66-3330R

X-Stream Top Assembly 66-3330R
Used with K&N Composite NHRA Scoop part # 100-8505 & Harwood 3158 Scoop


X-Stream Top Assembly 66-3340R

X-Stream Top Assembly 66-3340R
Used with K&N Composite NHRA Scoop part # 100-8505 & Harwood 3158 Scoop


X-Stream Top Assembly 66-0900R

K&N X-Stream Race Top Filters

Base Outside Diameter: 9" (229mm)
Height: 1" (25mm)
Part: 66-0900R


K&N Round Custom Air Filters

K&N Round Custom Air Filters

16 inch Round Air Filters

Outside Diameter: 16" (406 mm) | Inside Diameter: 14.25" (362 mm)
Height: 3" (76mm) | Part: E-3022R

Outside Diameter: 16" (406 mm) | Inside Diameter: 14.25" (362 mm)
Height: 3.25" (83mm) | Part: E-3023R

Outside Diameter: 16" (406 mm) | Inside Diameter: 14.25" (362 mm)
Height: 3.5" (89mm) | Part: E-3024R

Outside Diameter: 16" (406 mm) | Inside Diameter: 14.25" (362 mm)
Height: 3.75" (95mm) | Part: E-3025R

Outside Diameter: 16" (406 mm) | Inside Diameter: 14.25" (362 mm)
Height: 4" (102mm) | Part: E-3026R

14 inch Round Air Filters

Outside Diameter: 14" (356 mm) | Inside Diameter: 12.25" (311 mm)
Height: 3" (76mm) | Part: E-3027R

Outside Diameter: 14" (356 mm) | Inside Diameter: 12.25" (311 mm)
Height: 3.25" (83mm) | Part: E-3028R

Outside Diameter: 14" (356 mm) | Inside Diameter: 12.25" (311 mm)
Height: 3.5" (89mm) | Part: E-3029R

Outside Diameter: 14" (356 mm) | Inside Diameter: 12.25" (311 mm)
Height: 3.75" (95mm) | Part: E-3030R

Outside Diameter: 14" (356 mm) | Inside Diameter: 12.25" (311 mm)
Height: 4" (102mm) | Part: E-3031R


K&N Racing Cone Air Filters

K&N Racing Cone Air Filters

These filters are designed for the popular Formula Atlantic and Super Vee style cars, used in racing today. The filters fit into the air scoops and allow plenty of fresh clean air to enter the engine, but keep the small stones, tire dust and other racetrack debris from demolishing the engine. There is a hole at the small end of the filter to allow debris to exit the air scoop. Used by top teams around the country. The filters were designed for the vehicles listed below, but can probably be adapted to a wide variety of applications.

ApplicationDimension ADimension BDimension CPart#
Lola Sports 20005-7/8"2"10"28-4100
Vestal Racing Cars5-7/8"2"8"28-4105
Tiga Sport 20005-1/2"2"16"28-4115
83-85 Tiga Sport 20006-1/8"3"16"28-4120
Ralt Formula Atlantic, Super Vee4-7/8"2"16"28-4125
Swift Sport 20005-3/4"2"16"28-4130
Extension for 28-41308"4-7/8"11-5/8"28-4131