Feature: 1. Application: Parking heater exhaust pipe muffler can be used for 24mm exhaust pipe, suitable for Eberspacher Airtronic D2 D4 D4S D1LC D3LC, etc. 2. Improve Exhaust Sound: Parking heater exhaust pipe silencer can effectively improve the exhaust sound to bring you a better riding experience. 3. Stable Performance: Constructed of high strength aluminum alloy material, the pipe muffler can dissipate heat fast, and is not easy to deform and rust. 4. High Reliability: Parking heater muffler pipe is manufactured to meet standard specification, strictly follow factory quality control, safe and dependable. 5. Package Including: The package includes 1pc 24mm aluminum pipe silencer, 2pcs clamps, and 2pcs screws, perfect aftermarket replacement. Specification: Item Type: Parking Heater Exhaust Pipe Muffler Material: Aluminum Alloy Outer Diameter: Approx. 24mm (0.94inch) Inner Diameter: Approx. 18.5mm (0.73inch) Exhaust Funnel Type: Straight Internal Structure: Straight Line Description: Effectively improve the exhaust sound to give you a better riding experience Application: For 24mm exhaust pipe For Eberspacher Airtronic D2 For Eberspacher Airtronic D4 For Eberspacher Airtronic D4S For Eberspacher D1LC For Eberspacher D1LC Compact For Eberspacher D3LC For Eberspacher D3LC Compact For Eberspacher D5LC. Package List: 1 x Muffler2 x Screw2 x Clamp