K& N Custom Air Filter kits are designed to boost the performance from your carburetor while keeping dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and a K& N washable air filter.

K& N Custom Air Filters for Single or Two Barrel Carburetors - K& N custom air filter kits are designed to boost performance from your carburetor while keeping the dirt on the outside where it belongs. These assemblies come with custom chrome top and base plates and the famous K& N High-Flow Washable Air Filter.

• Designed To Increase Horsepower And Acceleration
• Show Quality With Custom Chrome Top and Base
• Washable And Reusable Air Filter
• High Air Flow With Excellent Filtration
• One Year Limited Warranty

Air Filter Color:	Red
Air Filter Height:	1.75 in (44 mm)
Air Filter Inside Diameter:	4.875 in (124 mm)
Air Filter Material:	Cotton Gauze
Air Filter Shape:	Round
Air Filter Washable:	Yes
Color / Finish:	Red Filter, Chrome Top
Inlet Diameter:	1.281 in (33 mm)
Mounting Hardware Included:	Yes
Neck Flange:	1.281 in (33 mm)
Oil Included:	Yes
Overall Height:	2 in (51 mm)
Package Material:	Paperboard
Package Type:	Box
Product Style:	Custom Assemblies
Prop 65 (C, R or CR):	CR
Prop 65 - Short Label:	WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Warning Label:	https://www.knfilters.com/images/l/prop65.jpg
Prop 65 Yes/No:	Yes
Replacement Filter:	E-3211
Size:	6-8
Style:	Round
Title:	K& N 56-9121 Custom Racing Assembly
Top Material:	Chrome
Top Style:	Chrome
Warranty:	1 Year Limited
Weight:	1.2 lb (0.5 kg)

• 1967-1971 Triumph Spitfire | Note: Incl. Chrome Top And Base Plates/High Flow Air Filter; Red;Custom Racing Assembly
• 1972 Triumph Spitfire | Note: Incl. Chrome Top And Base Plates/High Flow Air Filter; Red;Custom Racing Assembly~1.25 SU HS2/X2
• 1967-1971 Triumph Spitfire | Note: Custom Racing Assembly
• 1972 Triumph Spitfire | Note: 1.25 SU HS2; X2; Custom Racing Assembly