Track OrderOrder Status & ReturnsHelpGift CardsHelpHelp CenterPhone1-800-345-4545
Shop by Category

Most Popular

Restoration

Shop All Categories

Shop New ProductsShop ALL BrandsTech ArticlesDeals
MY ACCOUNT
Order Status & Returns
CONTACT USHELP CENTER
Logo
Cart0
$000
Street-Series Street Flow Muffler, 3-Chamber Inlet/Outlet: 2.250 in., Offset In/Center Out [Satin Finish]
InfoVehicle Info Needed
AERO EXHAUSTPART NUMBER: 889-SF42451

Street-Series Street Flow Muffler, 3-Chamber Inlet/Outlet: 2.250 in., Offset In/Center Out [Satin Finish]

$8399
ShippingShips on Sep 08, 2026
Lowest PriceLowest Price Guarantee

3-Chamber
2.250 in. Inlet
Street-Series Street Flow Muffler
  • 3-Chamber
  • Inlet/Outlet: 2.250 in.
  • Offset In/Center Out
  • 17 in. L x 9.500 in. W x 4 in. H
  • Overall Length: 23 in.
  • Aluminized Steel
  • Satin Finish
  • Sold Individually

    Street-Series SF42451 Street Flow Muffler Features:

    • Heavy-duty 16-gauge aluminized steel construction
    • Premium high-heat exterior finish for additional durability
    • Precision handcrafted internal chambers for improved flow and sound
    • Part TypeMuffler
    BrandAERO EXHAUST
    Package Height5.9
    Package Width11.1
    Package Length24.3
    Weight13.15 PG
    Part CategoryPerformance Parts
    Muffler MaterialAluminum
    Tip IncludedNo
    Hanger IncludedNo
    Outlet Diameter (In)2.250
    Outlet Quantity1
    QuantitySold individually
    Inlet LocationOffset
    Inlet Diameter (In)2.250
    Case ShapeOval
    Heat Shield AttachedNo
    Muffler FinishSatin
    Outlet LocationCenter
    Clamps IncludedNo
    Muffler Style3-Chamber
    Inlet Quantity1
    Part FitmentUniversal
    Sound LevelMild Sound
    Vendor Part NumberSF42451
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

    Items You Need

    Stainless Steel Strap Band Clamp Lap Joint

    DYNOMAX

    Stainless Steel Strap Band Clamp Lap Joint

    Part Number : 289-33231
    $1299
    Stainless Steel Strap Band Clamp Butt Joint

    DYNOMAX

    Stainless Steel Strap Band Clamp Butt Joint

    Part Number : 289-33229
    $1499
    123-Piece Tool Set with Carry Case

    JEGS

    123-Piece Tool Set with Carry Case

    Part Number : 555-80427
    $4659$51.99
    You Save$5.40
    2-Ton Low-Profile Aluminum Floor Jack [4,000 lbs. Capacity]

    JEGS

    2-Ton Low-Profile Aluminum Floor Jack [4,000 lbs. Capacity]

    Part Number : 555-80006
    $24499$269.99
    You Save$25.00
    6-Ton Jack Stands

    JEGS

    6-Ton Jack Stands

    Part Number : 555-80037
    $8099
    5-Piece Pry Bar Set

    JEGS

    5-Piece Pry Bar Set

    Part Number : 555-80024
    $2669$28.99
    You Save$2.30
    Round Magnetic Parts Tray [5 1/2 in. Round]

    JEGS

    Round Magnetic Parts Tray [5 1/2 in. Round]

    Part Number : 555-80080
    $549$5.99
    You Save$0.50
    Large Tailpipe Expander 2-1/8" to 3-7/16"

    JEGS

    Large Tailpipe Expander 2-1/8" to 3-7/16"

    Part Number : 555-W80662
    $3999$43.99
    You Save$4.00
    Medium Tailpipe Expander 1-1/2" to 2-7/16"

    JEGS

    Medium Tailpipe Expander 1-1/2" to 2-7/16"

    Part Number : 555-W80661
    $3699$40.99
    You Save$4.00
    Mechanic Creeper & Seat Set

    JEGS

    Mechanic Creeper & Seat Set

    Part Number : 555-81150
    $9999$109.99
    You Save$10.00
    Cut-Off Wheels [3 in. Diameter, Set of 4]

    JEGS

    Cut-Off Wheels [3 in. Diameter, Set of 4]

    Part Number : 555-M580C
    $599$6.99
    You Save$1.00
    Hydraulic Hitch-Mounted Crane [Three Boom Capacities: 500 lbs. 750 lbs. & 1000 lbs.]

    JEGS

    Hydraulic Hitch-Mounted Crane [Three Boom Capacities: 500 lbs. 750 lbs. & 1000 lbs.]

    Part Number : 555-81039
    $31299$362.99
    You Save$50.00
    Lo Boy Creeper 250 lb. Capacity

    JEGS

    Lo Boy Creeper 250 lb. Capacity

    Part Number : 555-81154
    $5999$65.99
    You Save$6.00
    Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]

    JEGS

    Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]

    Part Number : 555-81156
    $9099$111.99
    You Save$21.00
    Pit Mat 48 in. x 18 in. Unfolded

    JEGS

    Pit Mat 48 in. x 18 in. Unfolded

    Part Number : 555-80054
    $2999$32.39
    You Save$2.40
    Brake and Parts Cleaner [14 oz. Aerosol Can]

    JEGS

    Brake and Parts Cleaner [14 oz. Aerosol Can]

    Part Number : 555-72312
    $679$7.99
    You Save$1.20
    Workbench Utility Mat [24 in. x 16 in.]

    JEGS

    Workbench Utility Mat [24 in. x 16 in.]

    Part Number : 555-80170
    $2569$31.99
    You Save$6.30
    Some parts are not legal for use in California or other states with similar laws / regulations
    p65 warning
    Your Cart

    Your shopping cart is empty!