Stainless Steel T-Bolt Muffler Clamp | Vintage Honda
After fifty-odd years of heat cycles and road spray, the muffler clamps on most vintage Hondas are seized, rusted, or cracked — if they’re even still on the bike. This stainless T-bolt clamp pulls a fresh muffler tight to the head pipe and won’t rust its way back to the same sorry state.
Why You Need This
Exhaust clamps take a beating: constant heat cycling plus water, grit, and road grime wear through even a well-built clamp. A T-bolt design pulls tighter and spreads its force more evenly around the muffler than the old OEM-style band clamps, and the stainless construction shrugs off the corrosion that killed your originals. Put a fresh one on and it should outlast the exhaust.
Specifications
| Spec | Detail |
|---|
| Material | Stainless steel |
| Style | T-bolt |
| Sizes | 40–43 mm, 44–47 mm, or 47–51 mm (choose by muffler OD — see below) |
| Fits Models | CB175 / CL175 / SL175; CB200 / CL200; CB350 / CL350 / SL350; CB350F; CB360 / CL360 / CJ360; CB400F; CB450 / CL450; CB500T; CB500K; CB550 / CB550F; CB750 |
| Sold As | Sold Individually (one clamp per muffler) |
How to Pick Your Size
Measure the outer diameter of your muffler right where it slips onto the head pipe, then choose the clamp whose maximum size matches that measurement — that leaves the clamp enough room to pull down for a solid hold. A 47 mm muffler OD, for example, takes the 44–47 mm clamp.
- 40–43 mm: CB175 and CB200
- 44–47 mm: CB350, CB360, CB450, and CB500T
- 47–51 mm: CL350, CL360, and CL450
On any other model, measure your muffler OD and match it to the ranges above — that’s always the surest way to land on the right clamp.
Installation
Difficulty: Beginner
Match the size to the muffler. A clamp that’s too large for your muffler won’t seal the joint even bolted all the way down, so get the OD measurement right first.
Dab anti-seize on the bolt as you tighten, so the clamp comes off easily years down the road.
Pair it with a gasket. These work best alongside our graphite muffler-to-head-pipe gasket at the joint — the clamp holds, the gasket seals.
Frequently Asked Questions
How do I know which size to order?
Measure the muffler’s outer diameter where it clamps onto the head pipe and pick the clamp whose top-of-range matches it — a 47 mm OD takes the 44–47 mm clamp. When in doubt, measure; it beats guessing by model.
How many clamps do I need?
One clamp per muffler. Most twins run two mufflers, so they take two — count the mufflers on your exhaust and order to match. They’re sold individually.
Will the clamp seal the muffler on its own?
The clamp holds the joint tight, but the seal comes from the gasket. Use the graphite muffler gasket at the joint, get the clamp size right, and the two together keep the muffler quiet and in place.
You Might Also Need
Last updated: July 2026
