
The Story
REDBACK Extreme Duty Megaflow Resonator Muffler Solution for your Vehicle Universal Application
The Redback Extreme Duty Twin 4" Resonator (XR00671-40) is a premium modular component engineered for high-performance exhaust systems. Constructed from high-grade 304 Stainless Steel and coated in premium heat-proof paint, this 6" round straight-through resonator is designed to withstand extreme temperatures and harsh off-road conditions. Featuring a twin 4-inch bore with heavy-duty 10mm thick 4-bolt flange plates, it provides a secure, leak-free connection while the internal Megaflow core and glass packing deliver superior sound frequency control without restricting exhaust flow.
Key Features:
- 304 Stainless Steel Muffler Body – Provides ultimate protection against corrosion and thermal fatigue in extreme environments.
- Megaflow Straight-Through Internals – Zero-restriction perforated core ensures maximum exhaust gas velocity and engine efficiency.
- Heavy-Duty Flange Plates – Features 10mm thick, 4-bolt flanges for a high-strength, structural connection that resists warping.
- Premium Heat-Proof Coating – Finished in a specialized paint to provide an extra layer of protection and a sleek, stealth appearance.
- High-Density Glass Packing – Engineered to absorb high-frequency rasp and deliver a deep, refined performance note.
- Australian Designed and Made – Built locally to survive the toughest conditions, backed by a 10-year manufacturer warranty.
- Modular Compatibility – Specifically designed as a component for Redback Extreme Duty exhaust kits for easy interchangeability.
Specifications:
- Muffler Type: Resonator (Medium)
- Barrel Shape: 6" Round
- Pipe Size: Twin 101mm (4")
- Configuration: Centre / Centre
- Material: 304 Grade Stainless Steel
- Internals: Megaflow / Perforated
- Connection: 4-Bolt 10mm Flanges
- Coating: Premium Heat-Proof Paint
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
REDBACK Extreme Duty Megaflow Resonator Muffler Solution for your Vehicle Universal Application
The Redback Extreme Duty Twin 4" Resonator (XR00671-40) is a premium modular component engineered for high-performance exhaust systems. Constructed from high-grade 304 Stainless Steel and coated in premium heat-proof paint, this 6" round straight-through resonator is designed to withstand extreme temperatures and harsh off-road conditions. Featuring a twin 4-inch bore with heavy-duty 10mm thick 4-bolt flange plates, it provides a secure, leak-free connection while the internal Megaflow core and glass packing deliver superior sound frequency control without restricting exhaust flow.
Key Features:
- 304 Stainless Steel Muffler Body – Provides ultimate protection against corrosion and thermal fatigue in extreme environments.
- Megaflow Straight-Through Internals – Zero-restriction perforated core ensures maximum exhaust gas velocity and engine efficiency.
- Heavy-Duty Flange Plates – Features 10mm thick, 4-bolt flanges for a high-strength, structural connection that resists warping.
- Premium Heat-Proof Coating – Finished in a specialized paint to provide an extra layer of protection and a sleek, stealth appearance.
- High-Density Glass Packing – Engineered to absorb high-frequency rasp and deliver a deep, refined performance note.
- Australian Designed and Made – Built locally to survive the toughest conditions, backed by a 10-year manufacturer warranty.
- Modular Compatibility – Specifically designed as a component for Redback Extreme Duty exhaust kits for easy interchangeability.
Specifications:
- Muffler Type: Resonator (Medium)
- Barrel Shape: 6" Round
- Pipe Size: Twin 101mm (4")
- Configuration: Centre / Centre
- Material: 304 Grade Stainless Steel
- Internals: Megaflow / Perforated
- Connection: 4-Bolt 10mm Flanges
- Coating: Premium Heat-Proof Paint
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.












