Motorcycle Repacking Fiberglass E Glass Fiber Ceramic Basalt Stainless Steel Wool Pillow Kits Baffle Fleece Exhaust 4 2 Stroke Muffler Silencer Packing Material

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: silencer packing material
• Suitable for Car Brands: Exhaust Manifold Heat Shield Insulation
• Car Model: Exhaust Manifold Heat Shield Insulation
• Engine Type: Exhaust Manifold Heat Shield Insulation
• Type: Exhaust Pipe
• Body Material: Steel
• Discharge Standard: Euro V
• Certification: ISO9001, TS16949
• Noise Source: The Noise of Engine
• The Noise of Engine: Aerodynamic Noise
• Automobile Chassis Noise: Transmission Noise
• Component: Muffler
• Main Market: Europe
• Materials: Fiberglass, Silica, Ceramic, Basalt
• MOQ: 1000USD
• Manufacturer: Ningguo Bst Thermal Products Co., Ltd
• Packing: Carton Box
• Transport Package: Carton Box
• Specification: base on request
• Trademark: BSTFLEX
• Origin: China
• HS Code: 7019909990
• Production Capacity: 5000PCS/Day
• Package Size: 15.00cm * 15.00cm * 15.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 5 days (1 - 500 Pieces) ; To be negotiated ( > 500 Pieces)

Product Description

Motorcycle Exhaust Muffler Silencer Repacking Material - Fiberglass, Ceramic, Basalt & Stainless Steel Wool

Product Description

The motorcycle exhaust repacking material is designed for muffler and silencer sound absorption, thermal resistance, and exhaust performance stability in 2-stroke and 4-stroke motorcycle exhaust systems.

Manufactured by BSTFLEX, this product range includes fiberglass, E-glass fiber, ceramic fiber, basalt fiber, and stainless steel wool, supplied in pillow kits, baffle fleece, and loose packing formats.

These materials are engineered to withstand high exhaust temperatures while maintaining consistent acoustic damping and long service life, making them suitable for OEM replacement, aftermarket upgrades, and motorsport applications.

 

Available Packing Material Types (Material Classification Table)

Material Type	Fiber Composition	Heat Resistance Level	Key Characteristics	Typical Use
Fiberglass	Standard Glass Fiber	Medium	Good sound absorption, cost-effective	Street motorcycles
E-Glass Fiber	Electrical Grade Glass Fiber	Medium-High	Improved durability vs standard fiberglass	OEM mufflers
Ceramic Fiber	Alumina-Silica Ceramic	Very High	Excellent heat resistance, stable structure	High-temp exhaust
Basalt Fiber	Volcanic Rock Fiber	High	Strong, durable, vibration resistant	Performance bikes
Stainless Steel Wool	Stainless Steel Filament	Extreme	Withstands direct exhaust flow	First packing layer

 

Packing Form Options (Construction Table)

Form Type	Structure	Installation Method	Advantage
Pillow Kit	Pre-compressed pack	Insert directly into muffler	Fast installation
Baffle Fleece	Wrap-around sheet	Wrap around perforated core	Even sound absorption
Loose Packing	Bulk fiber	Hand packed	Flexible density control
Layered System	Steel wool + fiber	Multi-layer packing	Maximum durability

 

Function & Performance Overview

Performance Aspect	Description
Acoustic Control	Reduces exhaust noise while maintaining tone
Thermal Stability	Resists exhaust heat and thermal cycling
Flow Compatibility	Does not excessively restrict exhaust flow
Vibration Resistance	Maintains packing integrity under vibration
Service Life	Longer repacking intervals vs standard materials

 

2-Stroke vs 4-Stroke Compatibility Table

Engine Type	Recommended Material	Reason
2-Stroke	Ceramic / Basalt / SS Wool	Higher exhaust temperature & oil exposure
4-Stroke	Fiberglass / E-Glass / Basalt	Balanced heat and sound control
Racing	SS Wool + Ceramic Fiber	Maximum heat & durability
Street Use	Fiberglass / E-Glass	Cost-effective & quiet

 

Technical Specifications

Item	Description
Product Type	Exhaust Muffler Packing Material
Manufacturer	BSTFLEX
Materials	Fiberglass / E-Glass / Ceramic / Basalt / SS Wool
Form	Pillow / Fleece / Loose
Engine Compatibility	2-Stroke / 4-Stroke
Function	Sound Absorption & Heat Resistance
Temperature Resistance	High-Temperature Exhaust Use
Custom Kits	Available
OEM Supply	Supported

 

Typical Applications

Application Area	Description
Motorcycle Mufflers	OEM and aftermarket silencers
Performance Exhausts	Sport and racing systems
ATV / UTV	Compact exhaust silencers
Dirt Bikes	High-vibration environments
Custom Builds	Tuned exhaust systems

 

Advantages Compared with Standard Packing

Aspect	BSTFLEX Packing Materials	Ordinary Packing
Heat Resistance	Medium to Extreme Options	Limited
Sound Control	Stable & Consistent	Degrades Quickly
Material Selection	Multiple Fiber Types	Single Material
Durability	Long Service Life	Short
Customization	High	Low

 

Customization & Manufacturing Capability

Custom Option	Availability
Material Selection	yes
Pre-Sized Pillow Kits	yes
Layered Packing Design	yes
Bulk Supply	yes
OEM Branding	yes

All packing materials are manufactured under controlled quality systems and can be supplied according to drawings, samples, or exhaust specifications.

 

Application Notice

Correct packing density and material selection are essential to achieve optimal sound absorption and service life. Over-packing or under-packing may affect exhaust performance.

 

The motorcycle exhaust muffler repacking materials manufactured by BSTFLEX provide a complete solution for sound control, heat resistance, and durability in 2-stroke and 4-stroke exhaust systems.

With a full range of fiberglass, ceramic, basalt, and stainless steel wool options, and multiple packing formats, these materials meet the needs of OEM manufacturers, aftermarket suppliers, and performance builders.