Description
Overview
The Flowmaster Pro Series Muffler is a universal-fit, performance-focused muffler engineered by Flowmaster for enthusiasts who demand serious flow without the drone of an open pipe. Built for race-duty applications and finished in durable high-temperature paint, this Pro Series muffler is designed to handle the heat and abuse of dedicated performance use while keeping sound levels in check. With a 3.50-inch inlet diameter and a moderate sound level, it slots neatly into a wide range of high-output builds where airflow matters as much as tone.
Flowmaster developed the Pro Series on the dyno and at the track, and the results speak for themselves. According to Flowmaster Inc., the Pro Series mufflers consistently delivered performance equal to or surpassing open pipe systems, while dramatically reducing sound levels across the RPM range. That combination — open-pipe-level flow with real sound control — is exactly what makes a Flowmaster muffler the go-to choice for so many competitors.
Built for Every Class of Competition
Versatility is at the core of this design. The Pro Series works on all applications ranging from street trucks and diesel pullers to RV pushers, along with every class of racing on dirt or asphalt. Whether you’re building a heavy-hitting diesel puller, dialing in a race truck, or upgrading an RV pusher, this Flowmaster muffler is engineered to keep up. Its universal fitment gives fabricators and DIY builders the flexibility to integrate it into a custom Flowmaster exhaust system tailored to their specific setup.
Key Highlights
- Pro Series performance validated on the dyno and at the track by the Flowmaster exhaust company
- Flow that is equal to or surpasses open pipe systems, with dramatically reduced sound levels across the RPM range
- Moderate sound level for aggressive tone without excessive drone
- Large 3.50-inch inlet diameter to support high-flow, high-output builds
- Durable high-temperature paint finish built to withstand demanding conditions
- Universal fitment for street trucks, diesel pullers, RV pushers, and racing on dirt or asphalt
Why Choose Flowmaster
Flowmaster has built its reputation on exhaust systems and mufflers that deliver measurable performance, and the Pro Series carries that engineering forward for race-type applications. If you’ve run Flowmaster 40 Series or Flowmaster FX mufflers in the past, the Pro Series offers a purpose-built option for competition and heavy-duty performance use. It’s a strong choice for builders searching for the best muffler to anchor a high-flow exhaust setup.
Fitment & Compliance
This muffler is a universal-fit component (Emission Code 5) intended for race vehicle applications. Please note the California Proposition 65 warning associated with this product. Confirm your pipe sizing against the 3.50-inch inlet diameter to ensure a proper match for your custom Flowmaster exhaust build.
