Finding the Perfect Balance of Sound and Performance for Your Ride

The Flowmaster 70 Series Muffler is an aggressive and powerful street muffler that completely transforms the sound of your vehicle. If you’re looking to get an intense, deep exhaust tone that turns heads, the 70 Series is built to deliver. This high-performance muffler drastically improves the sound of V8s, trucks, SUVs, hot rods, and muscle cars while still providing interior resonance reduction.
The Flowmaster brand is known for its expertise in exhaust systems with over 40 years experience building mufflers and components. The 70 Series embodies the company’s pursuit of the perfect balance between amplification, tone, and performance. This muffler gives you an authoritative muscular idle and intense acceleration sound that Flowmaster is famous for.
Signature Flowmaster Sound
The deep powerful tones from the Flowmaster 70 Series are thanks to its chambered and laminar flow technology inside. It has three separate chambers with specialized tuning to shape the sound profile. The chambers dampen specific frequencies while allowing others to resonate louder.
This creates the signature Flowmaster sound – not overly obnoxious but with a refined muscle car rumble. It eliminates the tinny, raspy tones you get from some mufflers. The sound has been described as a commanding beastly roar that demands respect on the streets.
Many customers choose the 70 series specifically for its aggressive interior resonance. You not only get that bold exterior sound but also a pleasant rumble inside the cabin. This gives drivers and passengers an immersive muscular exhaust experience.
Maximum Performance

In addition to sound, the Flowmaster 70 Series also delivers when it comes to performance. The interior laminar flow technology is designed to reduce turbulence in the exhaust flow. This allows exhaust gases to smoothly pass through the muffler for increased power and efficiency.
The muffler cases are fully MIG welded for structural integrity even under racing conditions. The 70 Series is constructed from 16-gauge aluminized steel or stainless steel for maximum durability. Inside, the acoustical materials are wrapped in a proprietary Thermotech heat shield for protection against high temperatures.
All of this makes the 70 series perfect for towing and hauling where you need reduced backpressure and sustained performance. The free-flowing laminar interior gives you extra grunt when accelerating while towing or climbing grades. The sound also gives you an audible cue when the engine RPMs drop so you can downshift promptly.
Aggressive Styling
Visually, the Flowmaster 70 Series has an aggressive chrome or black finished case that matches its bold sound. The offset inlet and outlet along with the embossed Flowmaster logo give it eye-catching styling. For those who want both performance upgrades and standout looks, the 70 Series delivers.
It’s offered in a range of inlet/outlet configurations to fit different vehicle applications. You can choose from 2.25″, 2.5″, 3″, or 4″ inlets and outlets to match your existing exhaust piping size. Whether you’re installing the 70 Series on a truck, SUV, or high-power sports car, Flowmaster has an option to fit.
Backed by Quality Support

All Flowmaster products including the 70 Series are backed by a 10-Year Limited Warranty. This provides peace of mind and shows the company’s confidence in their manufacturing quality. Flowmaster also has a network of authorized dealers across the country to handle professional installations.
For those looking to tackle DIY home installation, Flowmaster provides detailed instruction sheets with diagrams. There are also video walkthroughs available online showing the muffler swap process step-by-step. With the right tools and proper safety precautions, most drivers can install a Flowmaster 70 Series in their driveway following the instructions.
Affordable High-Performance
The Flowmaster 70 Series delivers an upgraded aggressive exhaust note with maximum airflow technology in an affordable package. Prices range from $130 to $230 for most applications, making it one of Flowmaster’s more budget-friendly options.
When you consider the sound amplification, performance improvements, and quality construction, the 70 Series provides tremendous value. It’s one of the least expensive ways to completely change the attitude of your vehicle.
Let the Power Be Heard

If you’re ready to let your engine’s power be heard, few mufflers can match the bold sound profile of the Flowmaster 70 Series. Its attention-grabbing rumble backed by performance laminar flow makes it the perfect upgrade. Drivers everywhere are installing the 70 Series to get that quintessential Flowmaster muscle car sound. It allows your vehicle to dominantly announce itself with authority as you accelerate by. For your exhaust’s voice to demand respect on the road, the 70 Series is the ideal choice.