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Supplier details checked 2026-09-23 · Test catalog
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Flow FX Muffler - 3.00 Dual In/3.00 Dual Out with X-Pipe - Straight Through Performance - Moderate Sound - Stainless Steel
Flowmaster Flow FX Muffler
X-pipe style muffler core for improved sound control and exhaust gas scavenging
High temperature interior sound absorption material offers great sound control
Durable fully welded bright 409S stainless steel for good looks and long life
High flow straight-through design for great performance
Moderate exterior performance tone
Mild to moderate interior tone
Flowmaster quality
Universal Muffler - Not a direct fit. Some adaptation required. Center to center distance of inlets and outlets is 4.0-inches.
Flowmaster FlowFX Muffler SS 3 IN Dual IN/OUT W/ X-Pipe
MUFF 409SS 3 IN DUAL INOUT W XPIPE
FM FFX DUAL/D 3.00
Flowmaster's Flow FX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the "chambered" muffler sound. With a dual 3.00-inch inlet and outlet size, this muffler is a great choice for large displacement gas engines. The interior features a large 3.00-inch "straight-through" X-pipe style stainless steel perforated core, surrounded with high-temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in either direction to best suit the vehicle application. Features include fully MIG-welded "bright" 409 stainless steel construction with the Flow FX logo embossed on both sides of the case. The Flow FX line of mufflers are perfect for the person looking for a show quality performance muffler at an economical price point and in a compact sized case.
MUFF 3.00IN
