Angled Boot Pod Air Filters for Honda CB350 / CB360 / CB450 / CB500T
These angled boot pod air filters solve a common problem on vintage Honda twins: a missing, incomplete, or deteriorated factory air filter assembly. The OEM air filter setup on the CB350, CB360, CB450, and CB500T uses a glued assembly with rubber boots, paper or cellulose filter elements, metal covers, crossover tubes, and mounting hardware. Over time, the filter media and rubber degrade while the metal hardware survives — and the complete assembly must be replaced as a unit because individual rebuild parts are not available. On some models like the CB450, factory-style replacement filters are no longer manufactured at all.
Why the Boot Shape Matters on CV Carburetors
The Honda CB350, CB360, CB450, and CB500T all use Keihin CV (constant velocity) carburetors. The factory rubber boot acts like a runner, funneling air cleanly into the carburetor mouth without blocking the air passages that actuate the diaphragm and slide. Many universal pod filters use a straight boot that can partially obstruct these passages, causing inconsistent slide response. Our angled boot pod filters maintain a clean inlet path that works with the CV carburetor design.
Fits Under the Battery Box and Side Covers
Unlike straight-mount pod filters that require relocating the battery box, these angled boot pods fit in the tight space between the carburetors and the factory battery box. The filters can be rotated and angled to clear the factory side covers on the CB350, CB360, and CB450. This means you can run pod filters and keep the original side covers on the motorcycle.
| Part | Angled Boot Pod Air Filters |
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| Quantity | Sold as a Pair with mounting clamps |
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| Filter Type | Washable and reusable — air dry, do not oil |
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| Boot Style | Angled — runner-style inlet for CV carburetors |
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| Replaces OEM | Factory air filter assembly (airbox, boot, element, covers, crossover hardware) |
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| Fits Models | CB350 (K0–K5), CL350 (K0–K5), SL350 K0, CB360G, CB360T, CL360 (K0–K1), CJ360T, CB450 (K0–K7), CL450 (K0–K6), CB500T |
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Installation Overview
Installation involves removing the factory air filter assembly and sliding the pod filter boot onto each carburetor inlet. Push the filter on as far as it will go and snug the clamp — over-tightening will squeeze the rubber and push the filter off the end of the carburetor. A light spray of glass cleaner on the inside of the boot helps it slide on. Orient the clamp screw at the bottom for easy access.
Each model family has specific installation details:
- CB350 / CL350 / SL350: Clock the pods upward if running factory side covers. A longer M6 crossover rod (approximately 10 3/4 inches) with lock nuts replaces the factory rod to secure the side covers without the air filter assemblies. New side cover grommets are recommended if the originals are brittle.
- CB360 / CL360 / CJ360: The tightest fit of any model — the left-side carburetor inlet is very close to the battery box. Unbolt and slide the battery box rearward about one inch to gain clearance for installation, then slide it back into position. Verify carburetors are fully seated on the intake manifolds before tightening clamps.
- CB450 / CL450 / CB500T: The carburetor-to-manifold engagement is very shallow on the CB450. Replace the factory manifold clamps with beefier hose clamps and add a support (zip ties, safety wire, or a wire hanger over the frame) to prevent the carburetors from pulling out of the intake manifolds. New intake manifolds are recommended if the originals are old and stiff.
We have full step-by-step installation guides in our knowledge base: CB350 / CL350 / SL350 | CB360 / CL360 / CJ360 | CB450 / CL450 / CB500T
Jetting After Installation
Pod filters flow differently than the factory air filter assembly. Plan to evaluate carburetor jetting and mixture after installation. We recommend starting with the factory jetting and adjusting from there based on engine condition, exhaust setup, elevation, and climate.
Do these pod filters work with CV carburetors?
Yes. The angled boot provides a runner-style air path into the carburetor mouth, which maintains proper airflow for the CV diaphragm and slide. This is different from many generic straight-boot pods that can partially block the air passages Honda CV carburetors rely on.
Can I still run the factory side covers?
Yes. Rotate the pods upward to clear the battery box area. On the CB350 family, you will need a longer M6 crossover rod to clamp the side covers securely without the factory air filter assemblies in place.
Why is the CB360 installation harder than other models?
The CB360 carburetor inlet area — especially on the left side — is extremely close to the battery box. Sliding the battery box rearward about one inch before installation gives enough clearance to seat the boot.
Do I need to support the carburetors on the CB450?
Yes. The CB450 has very shallow carburetor-to-manifold engagement. Without the factory air filter boot supporting the front of each carburetor, the carbs can work loose from the manifolds. Use upgraded hose clamps and add a front support — zip ties, safety wire, or a wire sling over the frame.
Are these filters washable?
Yes. The filter elements are washable and reusable. Air dry after washing — do not oil.
Last updated: March 2026
