Smart Mufflers

2022 Smart 4 Series is a wonderful vehicle from the factory. The parts you will find in our catalog will help you bring the best out of your 4 Series. We have 867 Mufflers available for your 2022 4 Series all priced at lowest possible price backed by FREE SHIPPING. 

We price match competitors ... Shop with confidence. 


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Injen SES Series 76mm Muffler w/ Titanium Burnt Tip
Injen SES Series 76mm Muffler w/ Titanium Burnt Tip
Universal Part | Part #: SES300TT
Price: $317.74
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Borla XR-1 Series Sportsman Center/Center Round Muffler (2.5" Diameter, 2" Length)
Borla XR-1 Series Sportsman Center/Center Round Muffler (2.5" Diameter, 2" Length)
Universal Part | Part #: 401392
Highlights: No; 2"
Price: $148.99
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Magnaflow 8" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 30" Length)
Magnaflow 8" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 30" Length)
Universal Part | Part #: 12286

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Satin; 5"; 24"; Stainless Steel; 8"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Offset; 30"; Oval
Price: $171.00
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Magnaflow 8" Oval Offset/Offset (Same End) Straight-Through Performance Muffler (2.5" Inlet, 17" Length)
Magnaflow 8" Oval Offset/Offset (Same End) Straight-Through Performance Muffler (2.5" Inlet, 17" Length)
Universal Part | Part #: 14210

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Polished; 5"; 14"; Stainless Steel; 8"; 2.5"; 1; Offset; Straight-Through; 2.5"; 1; Offset Same End; 17"; Oval
Price: $204.00
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Borla CrateMuffler For Big Block Chrysler/ Dodge / Plymouth (Mopar) Moderate Output 383/ 413/ 426/ 440 V8
Borla CrateMuffler For Big Block Chrysler/ Dodge / Plymouth (Mopar) Moderate Output 383/ 413/ 426/ 440 V8
Universal Part | Part #: 400940
Highlights: S-Type; OEM; OEM; OEM; All Welded; Pipe; 2.5"; Offset; OEM; 2.5"; T-304 Stainless Steel; No; 2.5"; Center; OEM; OEM; Oval
Price: $340.99
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Borla XR-1 Series Sportsman Center/Center Oval Muffler (3" Diameter, 17" Length)
Borla XR-1 Series Sportsman Center/Center Oval Muffler (3" Diameter, 17" Length)
Universal Part | Part #: 40943
Highlights: 7.88"; 12"; 4.5"; All Welded; Pipe; 3"; Center; Single Center; 3"; T-304 Stainless Steel; No; No; 3"; Center; Single Center Outlet; 17"; Oval
Price: $180.95
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Flowmaster PRO SERIES OUTLAW RACE MUFFLER 3.5"/3.0"
Flowmaster PRO SERIES OUTLAW RACE MUFFLER 3.5"/3.0"
Universal Part | Part #: 13509130

Racing Applications

Highlights: Aluminized Steel; Lifetime Limited Warranty; Durable MIG Welded Construction; No Packing to Burn Out; Race Proven Sound Reduction Technology; Dyno Tuned For Maximum Performance; 5; 9; 5; 3.5; Center; 3; Center; Round; Aggressive Sound
Price: $121.95
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Borla CrateMuffler For Small Block Ford High Output 289/ 302 (Exc Coyote 5.0L)/ 351 Windsor & Big Block Moderate Output 390/ 427/ 428/ 460 FE Big Block V8
Borla CrateMuffler For Small Block Ford High Output 289/ 302 (Exc Coyote 5.0L)/ 351 Windsor & Big Block Moderate Output 390/ 427/ 428/ 460 FE Big Block V8
Universal Part | Part #: 400832
Highlights: ATAK; OEM; 14"; OEM; All Welded; Pipe; 2.5"; Offset; OEM; 2.5"; T-304 Stainless Steel; No; 2.5"; Center; OEM; 19"; Oval
Price: $248.99
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Magnaflow 8" Oval Offset/Offset Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Magnaflow 8" Oval Offset/Offset Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Universal Part | Part #: 14236

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Polished; 5"; 14"; Stainless Steel; 8"; 2.5"; 1; Offset; Straight-Through; 2.5"; 1; Offset; 20"; Oval
Price: $166.00
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Magnaflow 9" Oval Dual/Dual Straight-Through Performance Muffler (2.25" Inlet, 17" Length)
Magnaflow 9" Oval Dual/Dual Straight-Through Performance Muffler (2.25" Inlet, 17" Length)
Universal Part | Part #: 11378

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Satin; 4"; 11"; Stainless Steel; 9"; 2.25"; 2; Dual; Straight-Through; 2.25"; 2; Dual; 17"; Oval
Price: $162.00
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Borla XR-1 Series Sportsman Center/Center Oval Muffler (2.5" Diameter, 21" Length)
Borla XR-1 Series Sportsman Center/Center Oval Muffler (2.5" Diameter, 21" Length)
Universal Part | Part #: 40942
Highlights: 7.88"; 16"; 4.5"; All Welded; Pipe; 2.5"; Center; Single Center; 2.5"; T-304 Stainless Steel; No; No; 2.5"; Center; Single Center Outlet; 21"; Oval
Price: $164.99
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Gibson CFT Superflow Stainless Steel Oval Exhaust Muffler (Inlet 2", Outlet 2.25", Length 19")
Gibson CFT Superflow Stainless Steel Oval Exhaust Muffler (Inlet 2", Outlet 2.25", Length 19")
Universal Part | Part #: 55140S
Highlights: Stainless Steel; Offset / Center; 2"; 2.25"; 4"; 9"; 13"; 19"; Oval; Single
Price: $171.95
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Flowmaster 10 Series Race Muffler - 4.00 Center In / 4.00 Center Out - Aggressive Sound
Flowmaster 10 Series Race Muffler - 4.00 Center In / 4.00 Center Out - Aggressive Sound
Universal Part | Part #: 954010-12
Highlights: Gray; Aluminized Steel; Lifetime Limited Warranty; Durable fully welded 16 gauge aluminized steel - single chamber race muffler; Race proven patented Delta Flow technology; No internal packing to blowout; Minimal decibel reduction over open headers; 12; 5; 7.5; Aluminized Steel; 12; 12; Pipe Connection; 4; 4; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 4; Center; 4; Center; 13; Oval; Aggressive Sound
Price: $246.95
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Flowmaster 50 Delta Flow Muffler - 2.25 Center In / 2.25 Center Out - Moderate Sound
Flowmaster 50 Delta Flow Muffler - 2.25 Center In / 2.25 Center Out - Moderate Sound
Universal Part | Part #: 942450
Highlights: Gray; Aluminized Steel; 90 Months; Moderate Sound; Improved Horsepower, Torque and Engine Efficiency; Excellent choice for Street Rod cars and trucks; Mild interior resonance; 9.75; 4; 17; Aluminized Steel; 9.8; 2.25; Pipe Connection; 2.25; 2.25; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.25; 2.3; Center; Center; 23; Oval; Moderate Sound
Price: $185.95
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MBRP Stainless Steel Muffler
MBRP Stainless Steel Muffler
Universal Part | Part #: M91031
Highlights: 409 Stainless Steel; 24"; 4"; 4"; 30"
Price: $239.99
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Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2" Inlet, 20" Length)
Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2" Inlet, 20" Length)
Universal Part | Part #: 11224

Featuring a free-flowing, straight-through perforated stainless steel core, stainless mesh wraps our acoustic fiber fill to deliver a smooth, deep tone for your custom exhuast project

Highlights: Satin; 4"; 14"; Stainless Steel; 9"; 2"; 1; Center; Straight-Through; 2"; 1; Offset; 20"; Oval
Price: $124.95
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Flowmaster 40 Delta Flow Muffler - 2.00 Center In / 2.00 Offset Out - Aggressive Sound
Flowmaster 40 Delta Flow Muffler - 2.00 Center In / 2.00 Offset Out - Aggressive Sound
Universal Part | Part #: 942042
Highlights: Gray; Aluminized Steel; 90 Months; Durable fully welded 16 gauge aluminized steel; No internal packing to blowout; Excellent Street/Strip and Off Road application; Race proven patented Delta Flow technology; 2; 4; 13; Aluminized Steel; 9.8; 9.75; Pipe Connection; 2; 2; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2; 2; Offset; 19; Oval; Aggressive Sound
Price: $152.95
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Borla Thumper Boomers Muffler (2.25" Center Inlet, 4" Round Tip, 23.5" Length)
Borla Thumper Boomers Muffler (2.25" Center Inlet, 4" Round Tip, 23.5" Length)
Universal Part | Part #: 40057
Highlights: 7.88"; 14"; 4.5"; All Welded; Pipe; Center; Single Center; 2.25"; T-304 Stainless Steel; No; 2.25"; Center; Single Center Outlet; 23.5"; Oval; Polished T-304 Stainless Steel; 4"
Price: $256.99
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Showing 253 to 270 of 867 (49 Pages)
Showing 253 to 270 of 867 (49 Pages)
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