Split-Flow 3.5in Race Muffler

The DYNATECH Split-Flow 3.5in Race Muffler (SKU DTH776-14352) is a purpose-built exhaust silencer engineered for high-performance automotive applications where noise reduction and flow efficiency must coexist. Designed for enthusiasts and race teams seeking a lightweight, durable muffler that maintains optimal exhaust scavenging, this unit combines proven split-flow technology with modern materials to deliver both acoustic control and power retention. The 3.5-inch center inlet and outlet configuration makes it ideal for mid-to-high displacement engines requiring a performance-oriented silencing solution without excessive backpressure.

Constructed from aluminized steel, the Split-Flow 3.5in Race Muffler features a 7 x 4-inch oval body and 14-inch overall length, optimizing internal volume while maintaining a compact footprint for tight underbody installations. The split-flow design divides exhaust gases into separate chambers before recombination, reducing turbulence and minimizing backpressure—critical factors for naturally aspirated and forced-induction powerplants operating at elevated RPM ranges. Aluminized construction resists corrosion and thermal degradation, extending service life in demanding conditions while keeping weight at just 8.6 lbs, making it suitable for weight-conscious build applications.

This muffler is ideal for track-focused builds, street performance vehicles, and engine swaps where factory silencers prove restrictive. The 3.5-inch center inlet/outlet sizing accommodates custom exhaust systems with matching pipe diameters, requiring proper installation using quality clamps and hangers to isolate vibration. Compatibility should be verified with your specific exhaust manifold exit and chassis layout before purchase, as the 20.2-inch overall depth (including inlet/outlet pipes) demands adequate clearance from suspension, fuel systems, and frame rails. Consult your vehicle's exhaust schematic or contact our specialists for fitment confirmation on your platform.