4.0 inch Lap Joint Exhaust Clamp 304 Stainless Steel Material For Exhaust Pipes, Muffler Ends and Exhaust System Connection 2PCS

A slip joint that has been apart once never seals quite the same again. You get a tick at idle, then a black streak of soot running back along the pipe. A lap joint clamp squeezes the outer tube down onto the inner one across a full band, closing that gap without the welder coming out of the corner.

Clamping load spread right around

The band is formed as a 360-degree curved surface, so pressure spreads around the whole circumference instead of pinching at two points the way a U-bolt does. The pipe keeps its shape, the joint stays sealed, and the clamp comes off cleanly when a muffler needs changing later. It draws up on a single M10 nut and bolt, with an aluminium alloy I-stick carrying the load across the joint. No welding, no flanges, nothing to fabricate.

304 stainless for the underside of a 4WD

The band is 304 stainless, the grade normally chosen for exhaust hardware because it stands up to the salt and road spray that turn plain steel clamps into a seized lump inside a couple of seasons. On a 4WD that sees beach runs, that is the difference between undoing a nut with a spanner and cutting the clamp off.

Key features

• No welding needed: bolts up over a lap joint, so the section can be removed again later.
• Even seal: the full-circumference band avoids the flat spots a two-bolt clamp leaves.
• Corrosion-resistant band: 304 stainless holds up under salt spray and wet gravel.
• Single fastener: one M10 nut and bolt.
• Pack of two: covers both joints on a muffler swap.

Specifications

• Size: the product title states 4.0 inch; the supplier's own size line states it joins 5 inch OD pipe to 5 inch ID pipe. The two do not agree — measure your pipe and confirm before ordering.
• Band material: 304 stainless steel
• Load piece: aluminium alloy I-stick
• Fastener: M10 nut and bolt
• Quantity: 2 clamps
• Suits: cat-back exhausts, mufflers, down pipes, manifolds and general industrial joints

Worth checking first

• The listing contradicts itself on pipe size. Measure the outside diameter of the outer pipe and the inside diameter of the inner pipe, and confirm before you buy.
• Let the exhaust cool right down before working on it. Pipes hold heat long after the engine stops.
• Nothing here changes power output, exhaust note or emissions, and no such claim is made for it.

If a joint has started blowing and you would rather not book it in, this is the straightforward fix.

Returns, Refunds, and Replacements

Products that are received faulty, damaged, or not as described are eligible for a return, refund, or replacement in accordance with the Australian Consumer Law (ACL). We are committed to ensuring all products meet the standards of quality and reliability expected by our customers. However, please note that we do not accept returns or provide refunds for change of mind. We encourage you to carefully consider your purchase to ensure it meets your needs and expectations.

Delivery Timeframe

Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows:

For customers in Victoria, approximately 7-10 working days;
For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days;
For customers in WA, NT, and TAS, approximately 9-12 working days.