TOTALFLOW 4" inch diesel high performance straight through performance Diesel exhaust mufflers constructed with 409 stainless steel, our universal exhaust mufflers designed to allow for maximum free flow—and horsepower. Whether you have a true dual exhaust system or not, our mufflers will make you master the flow & the sound of your exhaust system giving you the max dyno results. Our universal muffler replacement with a straight through design, resonators and glasspacks & can be a great addition to your on road super custom project. TOTALFLOW mufflers feature a straight through, perforated 409 stainless steel core wrapped with stainless steel mesh acoustic material, making it the ideal mufflers for your next custom exhaust project, allowing for a free flow through the exhaust pipes with very little restriction.

• Made from Heavy Gauge 409 stainless steel.

• Free flow muffler, straight through perforated stainless steel core wrapped with stainless steel mesh & sound absorbing materials to enhances sound, exhaust flow & improves performance.

• Minimal decibel reduction over open headers for deeper & more Aggressive Sound.

• Perfect for any custom exhaust project or muffler upgrade.

• Fully Welded Case.

• Universal Fitment muffler.

• Mellow deep tone rumble.

*ID = Inner Diameter