My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Flowmaster Series HD Chambered Muffler Moderate Sound

(1999-2004, 2010-2014 Ford F-150; 2011-2014 Ram 1500; 2004-2006, 2009-2010 Dodge Ram 1500; 1996-2002 Dodge Viper; 1962-1979 Buick LeSabre Limited)

Manufacturer

Picture for manufacturer Flowmaster

Part Number

3 part numbers · from $277.95
9 reviews
Sale Price

from $277.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Select Your Vehicle:

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster 50 Series HD Chambered Muffler is a performance exhaust muffler built for heavy-duty gas and diesel trucks. It is designed to improve throttle response and efficiency while giving a deep, moderate exhaust tone. The chambered design reduces noise well compared with open headers. It does not use internal packing, so there is no risk of packing blowout.

Key Features:

  • Moderate sound level: a deeper tone with minimal interior resonance. It suits trucks with modified engines.
  • Chambered design: Flowmaster's Delta Flow chambered construction cuts noise without relying on packing material.
  • Durable construction: the oval case is made of aluminized steel or 409 stainless steel, depending on the version, and the muffler is fully MIG welded.
  • Performance benefits: designed to improve horsepower, torque, and engine efficiency.
  • Universal-style application: made for heavy-duty gas engines, large-displacement engines, and diesel trucks. Some adaptation may be needed during installation.
  • Multiple configurations: offered with a range of inlet and outlet layouts and pipe diameters to suit different exhaust setups.

The 50 Series HD is a good choice for truck owners who want a stronger exhaust note and better performance without a loud, droning cabin. Stainless steel versions are backed by Flowmaster's Lifetime Limited Warranty.

Products specifications

Fits

1999-2004, 2010-2014 Ford F-150; 2011-2014 Ram 1500; 2004-2006, 2009-2010 Dodge Ram 1500; 1996-2002 Dodge Viper; 1962-1979 Buick LeSabre Limited

Select yours to see vehicle-specific options.

Select & Customize

3 items

Picture of Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50
Flowmaster 8525554 Series HD Chambered Muffler Moderate Sound - 50
Exhaust
Description
Specifications
Body Height5.00
BrandFlowmaster
California Proposition 65Yes
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 Chemical NameNickel (Metallic)
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
Exhaust Tip QuantitySold Separately
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter2.50
Inlet Inside Diameter2.50
Inlet LocationDual
Inlet Outside Diameter2.63
Inlet Quantity2
Inlet TypeWeld-On
Inlet TypeClamp-On
Mount TypeUses New Hangers (Not Included)
Muffler Series50 Series HD
Muffler TypeChambered
Outlet ConnectionSlip-Fit
Outlet LocationDual
Outlet Outside Diameter2.63
Outlet Quantity2
Outlet TypeDual
Part TypeExhaust Muffler
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelModerate
Sub CategoryMufflers
TunableNo
Universal Or Specific FitUniversal
Vehicle TypeTruck/SUV
Vehicle TypeDiesel
WarningCalifornia Proposition 65
$327.95
PART NUMBER: 8525554
In Stock (10+)
Usually delivered within 2 days
Picture of Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50
Flowmaster 9530572 Series HD Chambered Muffler Moderate Sound - 50
Exhaust
Description
Specifications
Body Height5.00
Body MaterialAluminized steel
BrandFlowmaster
California Proposition 65No
CategoryExhaust
Clamps IncludedNo
ColorBlack
Emission Code5
Exhaust Tip Quantity0
Exhaust Tip QuantitySold Separately
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter3.00
Inlet LocationCenter
Inlet Quantity1
Inlet TypeWeld-On
Inlet TypeClamp-On
Mount TypeUses New Hangers (Not Included)
Muffler Series50 Series HD
Muffler TypeChambered
Outlet ConnectionSlip-Fit
Outlet LocationDual
Outlet Outside Diameter2.63
Outlet Quantity2
Outlet TypeDual
Part TypeExhaust Muffler
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelModerate
Sub CategoryMufflers
TunableNo
Universal Or Specific FitUniversal
Vehicle TypeTruck/SUV
Vehicle TypeDiesel
$277.95
PART NUMBER: 9530572
In Stock (10+)
Usually delivered within 2 days
Picture of Flowmaster 9530582 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530582 Series HD Chambered Muffler Moderate Sound - 50 Picture of Flowmaster 9530582 Series HD Chambered Muffler Moderate Sound - 50
Flowmaster 9530582 Series HD Chambered Muffler Moderate Sound - 50
Exhaust
Description
Specifications
Body Height5.00
Body MaterialAluminized steel
BrandFlowmaster
California Proposition 65No
CategoryExhaust
Clamps IncludedNo
Emission Code5
Exhaust Tip Quantity0
Exhaust Tip QuantitySold Separately
FinishHigh-Temperature Paint
FitmentUniversal
Grade TypePerformance
Hanger IncludedNo
Heat Shield AttachedNo
Inlet ConnectionSlip-Fit
Inlet Diameter3.00
Inlet LocationOffset
Inlet Quantity1
Inlet TypeWeld-On
Inlet TypeClamp-On
Mount TypeUses New Hangers (Not Included)
Muffler Series50 Series HD
Muffler TypeChambered
Outlet ConnectionSlip-Fit
Outlet LocationDual
Outlet Outside Diameter2.63
Outlet Quantity2
Outlet TypeDual
Product TypeStreet Mufflers
ReversibleNo
ShapeOval
Sound LevelModerate
TunableNo
Universal Or Specific FitUniversal
Vehicle TypeTruck/SUV
Vehicle TypeDiesel
$277.95
PART NUMBER: 9530582
In Stock (10+)
Usually delivered within 2 days

Select & Customize

So far this was very easy. Hoping tire will arrive uneventful and I can have it installed uneventfully!

Quick and easy to do

Excellent website, in stock product. Great service!

Excellent pricing fast delivery just what I needed

The packaging was mangled on delivery. I haven't put the cover on yet

Nana

So far...so good

For a heavy duty brace system, seems kinda flimsy. Guess we will see how it holds up.

Easy look up

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy