Stainless Bros 614-06303-4100 3in x 12in OAL Lightweight Muffler Polished

The Stainless Bros 614-06303-4100 is a 3.0-inch x 12-inch OAL Lightweight Straight-Through Muffler built from polished 304 stainless steel — purpose-engineered for performance exhaust fabricators, race builds, and custom street applications. Designed with weight savings and flow efficiency in mind, this compact muffler delivers a clean, aggressive exhaust tone without the bulk of traditional baffled mufflers.

Key Features:

• 304 Stainless Steel Construction — Corrosion-resistant, durable, and built to withstand extreme heat cycles
• 3.0" Inlet / 3.0" Outlet — Straight-through, single inlet/single outlet design for maximum exhaust flow
• 12" Overall Length (OAL) — Compact profile ideal for tight exhaust system packaging
• 16-Gauge Wall Thickness — Provides structural rigidity while keeping weight to a minimum
• Polished Finish — Show-quality exterior appearance straight out of the box
• Lightweight Design — Approximately 5.6 lbs, minimizing unsprung weight for performance-focused builds
• Fiberglass Packing — Absorbs sound and smooths exhaust tone without restricting flow

The Stainless Bros lightweight muffler series is a favorite among custom exhaust fabricators, track-day enthusiasts, and performance builders who demand professional-grade stainless components. The 614-06303-4100 pairs seamlessly with Stainless Bros mandrel bends, pie cuts, and 304SS tubing for a complete, cohesive exhaust system build.