Performance Mufflers

Upgrade your exhaust sound and add horsepower with performance mufflers. Our selection includes glasspacks for aggressive tone, chambered mufflers for deep sound, and turbo-style for quiet performance.

Why Performance Mufflers?

Factory mufflers prioritize silence over performance. Performance mufflers reduce backpressure, improve exhaust flow, and deliver the exhaust note you want - from subtle to aggressive.

Shop by Type

Related Collections

Showing 13 to 24 of 90 items
Sold Out
Flowmaster 9430522 Performance Muffler Flowmaster 9430522 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 9430522

$0.00

The Flowmaster 9430522 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out

Flowmaster 40 Series Delta Flow Muffler 9430502

$0.00

The Flowmaster 9430502 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 9430472 Performance Muffler Flowmaster 9430472 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 9430472

$0.00

The Flowmaster 9430472 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 9430462 Performance Muffler Flowmaster 9430462 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 9430462

$0.00

The Flowmaster 9430462 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 9430452 Performance Muffler Flowmaster 9430452 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 9430452

$0.00

The Flowmaster 9430452 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 9430422 Performance Muffler Flowmaster 9430422 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 9430422

$0.00

The Flowmaster 9430422 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 9430109 Performance Muffler Flowmaster 9430109 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 9430109

$0.00

The Flowmaster 9430109 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out

Flowmaster 40 Series Delta Flow Muffler 9420512

$0.00

The Flowmaster 9420512 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 8430402 Performance Muffler Flowmaster 8430402 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 8430402

$0.00

The Flowmaster 8430402 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out

Flowmaster 40 Series Delta Flow Muffler 8430152

$0.00

The Flowmaster 8430152 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out
Flowmaster 8425810 Performance Muffler Flowmaster 8425810 Performance Muffler

Flowmaster 40 Series Delta Flow Muffler 8425810

$0.00

The Flowmaster 8425810 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Sold Out

Flowmaster 40 Series Delta Flow Muffler 8425154

$0.00

The Flowmaster 8425154 40 Series Delta Flow Muffler delivers superior exhaust flow and an aggressive,...

Frequently Asked Questions

Will a performance muffler add horsepower to my vehicle?

Yes, performance mufflers typically add 2-10 horsepower by reducing exhaust backpressure and improving flow. The exact gains depend on your engine size, existing exhaust setup, and the muffler design. Larger engines like V8s see more noticeable gains. However, the primary benefit most owners notice is improved throttle response and a more aggressive exhaust note.

What's the difference between chambered, turbo, and straight-through performance mufflers?

Chambered mufflers use internal baffles to create a deep, tuned muscle-car sound with good drone control. Turbo mufflers use an S-tube path for quiet performance with minimal cabin noise. Straight-through (glasspack) mufflers have a perforated core for maximum flow and the loudest, most aggressive sound. Choose based on your sound preference and daily driving needs.

How do I choose the right performance muffler size for my vehicle?

Match the muffler inlet size to your existing exhaust pipe diameter. Most 4-cylinder and V6 vehicles use 2.25-2.5 inch pipes, while V8 trucks and performance cars typically use 2.5-3 inch. Measure your current exhaust pipe's outside diameter (OD) to find the correct fit. Going too large can actually reduce low-end torque.

Will a performance muffler cause drone on the highway?

Some performance mufflers can cause drone at certain RPMs, particularly straight-through designs on vehicles that cruise at steady highway speeds. To minimize drone, choose chambered or turbo-style mufflers, look for 'low drone' product notes, consider adding a resonator, or select a larger muffler case size which helps dampen problematic frequencies.

Do I need a tune after installing a performance muffler?

For most vehicles, installing just a performance muffler does not require a tune. The engine's ECU can adapt to the small change in exhaust flow. However, if you're also changing headers, catalytic converters, or adding forced induction, a tune is recommended to optimize performance and prevent check engine lights.