MBRP Muffler – Armor Plus – Universal Fit – T409 Stainless Steel – 5-Inch

Free shipping on this MBRP Armor Plus 5-inch universal muffler.

Built for trucks that see real miles, this Armor Plus muffler uses T409 stainless steel to handle heat, vibration, and long-term exposure without giving up structural integrity. The 5-inch diameter supports high‑flow diesel and gas applications where predictable backpressure and consistent tone control matter.

The straight‑through internal core keeps exhaust velocity strong while delivering a deeper, controlled sound that works for tow rigs, work trucks, and fabricated performance systems.

Key Specs & Features

• Universal‑fit performance muffler

• 5-inch diameter

• Armor Plus T409 stainless steel construction

• Straight‑through internal core for optimized flow

• Welded seams for long‑term durability

• Suitable for diesel and high‑output gas custom systems

• Built for fabricators needing predictable flow behavior

Verified Fitment

This is a universal‑fit component. It is not designed for a specific Year/Make/Model and requires welding or fabrication.

Warranty

Armor Plus T409 stainless steel includes a Lifetime Warranty. Heat‑related surface coloration is normal for T409 and not considered a defect.

Why It Works

The 5-inch configuration is a proven standard for high‑flow diesel builds. T409 stainless steel provides long‑term durability without the cost of full T304, making it a strong choice for tow rigs, job‑site trucks, and performance‑focused custom systems.

Important Notes

• Universal‑fit; welding required

• Not a clamp‑on design

• T409 stainless will show natural heat cycling over time

• Professional installation recommended for best alignment