$20 Off $250 / $40 Off $500 / $80 Off $1000 - Use Promo Code: CYBER

$20 Off $250 / $40 Off $500 /
$80 Off $1000 - Use Promo Code: CYBER

Summit Racing SpeedCard - learn how to get 15% back - Get Details!

Selected Filters


Loading...

Availability


Flowmaster Exhaust: Mufflers, Systems, Tips & More

Flowmaster Exhaust: Mufflers, Systems, Tips & More

For over 25 years, the Flowmaster tone has been thundering through streets and on tracks around the world! Housed in two state-of-the-art facilities, Flowmaster uses...

For over 25 years, the Flowmaster tone has been thundering through streets and on tracks around the world! Housed in two state-of-the-art facilities, Flowmaster uses premium materials along with extensive research and design to produce advanced, dyno-tuned exhaust systems and components that deliver power gains with an unmistakable sound. Some of the most distinct exhaust systems include the Flowmaster 40 Series and American Thunder mufflers, but there are plenty more choices—whether you want your ride to sound wild or mild, Flowmaster has the high performance exhaust parts you need.

For over 25 years, the Flowmaster tone has been thundering through streets and on tracks around the world! Housed in two state-of-the-art facilities, Flowmaster uses premium materials along with extensive research and design to produce advanced, dyno-tuned exhaust systems and components that deliver power gains with an unmistakable sound. Some of the most distinct exhaust systems include the Flowmaster 40 Series and American Thunder mufflers, but there are plenty more choices—whether you want your ride to sound wild or mild, Flowmaster has the high performance exhaust parts you need.

Individual Parts

Results 1 - 25 of 105

Muffler, American Thunder 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-42541

4.74 out of 5 stars ( 85 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, FlowFX Series, 2.5 in. Inlet, 2.5 in. Outlet, 409 Stainless Steel, Natural Finish, Each

Part Number: FLO-71226

4.8 out of 5 stars ( 74 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942551

4.84 out of 5 stars ( 37 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Flowmaster 40 Series, 3 in. Offset Inlet/3 in. Center Outlet, Steel, Black, Each

Part Number: FLO-43041

4.83 out of 5 stars ( 47 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 44 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942546

4.65 out of 5 stars ( 52 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, American Thunder 40 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Steel, Black, Each

Part Number: FLO-42441

4.87 out of 5 stars ( 31 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, 40 Series, 2 1/2 in. Offset Inlet, 2 1/2 in. Offset Outlet, Chambered, Steel, Black, Each

Part Number: FLO-42543

4.9 out of 5 stars ( 42 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842551

4.52 out of 5 stars ( 23 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, FlowFX Series, 2.5 in. Inlet/2.5 in. Outlet, Stainless Steel, Natural, Each

Part Number: FLO-71236

4.8 out of 5 stars ( 25 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 50 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842553

4.63 out of 5 stars ( 19 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 50 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843051

4.76 out of 5 stars ( 17 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, FlowFX Series, 2.25 in. Offset Inlet/2.25 in. Center Outlet, Stainless Steel, Natural, Each

Part Number: FLO-71225

4.58 out of 5 stars ( 26 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 44 Series, 3 in. Inlet/3 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843046

4.81 out of 5 stars ( 21 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, American Thunder 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-43043

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 50 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-943053

4.63 out of 5 stars ( 24 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 50 Series, 2 1/4 in. Inlet/2 1/4 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842451

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 44 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842548

4.75 out of 5 stars ( 24 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-8042541

4.27 out of 5 stars ( 15 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 10 Series, 3.0 in. Inlet/3.0 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-843016

4.91 out of 5 stars ( 23 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842541

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 40 Series, 3 in. Inlet/3 in. Outlet, Steel, Black, Each

Part Number: FLO-953047

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Delta Flow 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-942541

4.57 out of 5 stars ( 14 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 44 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Stainless Steel, Black, Each

Part Number: FLO-842546

4.71 out of 5 stars ( 17 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Super 40 Series, 2 1/2 in. Inlet/2 1/2 in. Outlet, Steel, Black, Each

Part Number: FLO-952548

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Muffler, Outlaw Series Race, Round, Stainless, Black, 3.0 in. Center Inlet/Outlet, 10.5 in. Case Length, Each

Part Number: FLO-817846

4.11 out of 5 stars ( 9 )

Estimated Ship Date: Monday 12/1/2025

...Loading

Estimated Ship Date: Monday 12/1/2025

This product may not be eligible for select promotional offers

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.