Smart Mufflers

2013 Smart SX4 is a wonderful vehicle from the factory. The parts you will find in our catalog will help you bring the best out of your SX4. We have 867 Mufflers available for your 2013 SX4 all priced at lowest possible price backed by FREE SHIPPING. 

We price match competitors ... Shop with confidence. 


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Flowmaster 70 Series Muffler 409S - 3.00 Center In / 3.00 Offset Out - Mild Sound
Flowmaster 70 Series Muffler 409S - 3.00 Center In / 3.00 Offset Out - Mild Sound
Universal Part | Part #: 853072
Highlights: Gray; Stainless Steel; Lifetime Limited Warranty; Mild to stock exterior exhaust tone; Improved Horsepower, Torque and Engine Efficiency; Recommended for SUV/trucks/motorhomes/tow vehicles; Minimal interior resonance; 5; 5; 22; Stainless Steel; 10; 10; Pipe Connection; 3; 3; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Offset; 28; Oval; Mild Sound
Price: $255.95
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Borla ProXS Series Center/Dual Muffler (3" Inlet, Dual 2.5" Outlet, 24" Length)
Borla ProXS Series Center/Dual Muffler (3" Inlet, Dual 2.5" Outlet, 24" Length)
Universal Part | Part #: 400487
Highlights: 4"; 19"; 9.5"; All Welded; Pipe; 3"; Center; Single Center; 3"; T-304 Stainless Steel; Yes; No; 2.5"; Offset; Dual Offset Outlet; 23"; Oval
Price: $170.99
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Flowmaster Pro Series Shorty Muffler - 3.00 Center In / 3.00 Center Out - Moderate Sound
Flowmaster Pro Series Shorty Muffler - 3.00 Center In / 3.00 Center Out - Moderate Sound
Universal Part | Part #: 13012100
Highlights: Black; Stainless Steel; Lifetime Limited Warranty; Durable fully welded 18 gauge stainless steel case; High horsepower apps include diesels/RVs/trucks; Race Proven Design; 409 Stainless Steel Internal Construction; 6; 12; Stainless Steel; 6; 6; 3; 3; Center; Center; 3; 3; Center; Center; Round Case; Moderate Sound
Price: $232.95
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Borla XR-1 Series Sportsman Center/Center Round Muffler (3.5" Diameter, 13" Length)
Borla XR-1 Series Sportsman Center/Center Round Muffler (3.5" Diameter, 13" Length)
Universal Part | Part #: 40004S
Highlights: 5"; 8"; 5"; All Welded; Pipe; Center; Single Center; 3.5"; T-304 Stainless Steel; No; No; 3.5"; Center; Single Center Outlet; 13"; Round
Price: $178.99
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Flowmaster Super 40 Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound
Flowmaster Super 40 Muffler - 2.25 Offset In / 2.25 Offset Out - Aggressive Sound
Universal Part | Part #: 952448
Highlights: Black; Aluminized Steel; 90 Months; Deep Aggressive Sound Exhaust Note; Race proven patented Delta Flow technology; Excellent performance on high horsepower vehicles; Noticeable interior resonance; 10; 5; 13.5; Aluminized Steel; 10; 10; Pipe Connection; 2.25; 2.25; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.25; 2.3; Offset; 19.5; Oval; Aggressive Sound
Price: $152.95
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Borla CrateMuffler Resonator - 3" Center Inlet / Center Outlet 4" Round x 1" Long Body 14" Overall Length
Borla CrateMuffler Resonator - 3" Center Inlet / Center Outlet 4" Round x 1" Long Body 14" Overall Length
Universal Part | Part #: 400939
Highlights: OEM; OEM; OEM; All Welded; Pipe; 3"; Center; OEM; 3"; T-304 Stainless Steel; No; 3"; Center; OEM; OEM; Rectangular
Price: $164.99
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Borla ProXS Series Offset/Offset Muffler (2.5" Tubing, 19" Length)
Borla ProXS Series Offset/Offset Muffler (2.5" Tubing, 19" Length)
Universal Part | Part #: 400490
Highlights: 4"; 14"; 9.5"; All Welded; Pipe; 2.5"; Offset; Single Offset; 2.5"; T-304 Stainless Steel; Yes; No; 2.5"; Offset; Single Offset Outlet; 18"; Oval
Price: $118.99
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Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 17" Length)
Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 17" Length)
Universal Part | Part #: 11366

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"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Offset; 17"; Oval
Price: $124.95
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Magnaflow 7" Round Center/Center Straight-Through Performance Muffler (4" Inlet, 20" Length)
Magnaflow 7" Round Center/Center Straight-Through Performance Muffler (4" Inlet, 20" Length)
Universal Part | Part #: 12775

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; 7"; 14"; Stainless Steel; 7"; 4"; 1; Center; Straight-Through; 4"; 1; Center; 20"; Round
Price: $215.00
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Injen SES Series 76mm Muffler w/ Polished Tip
Injen SES Series 76mm Muffler w/ Polished Tip
Universal Part | Part #: SES300C
Price: $263.17
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Magnaflow 9" Oval Center/Center Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Magnaflow 9" Oval Center/Center Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Universal Part | Part #: 11246

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"; 18"; Stainless Steel; 9"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Center; 24"; Oval
Price: $139.00
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Magnaflow 11" Oval Center/Offset Straight-Through Performance Muffler (3.5" Inlet, 28" Length)
Magnaflow 11" Oval Center/Offset Straight-Through Performance Muffler (3.5" Inlet, 28" Length)
Universal Part | Part #: 12909

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"; 22"; Stainless Steel; 11"; 3.5"; 1; Center; Straight-Through; 3.5"; 1; Offset; 28"; Oval
Price: $217.00
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Magnaflow 6" Round Center/Center Straight-Through Performance Muffler (3" Inlet, 20" Length)
Magnaflow 6" Round Center/Center Straight-Through Performance Muffler (3" Inlet, 20" Length)
Universal Part | Part #: 14619

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; 6"; 14"; Stainless Steel; 6"; 3"; 1; Center; Straight-Through; 3"; 1; Center; 20"; Round
Price: $164.00
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Flowmaster 40 Delta Flow Muffler - 2.25 Center In / 2.25 Dual Out - Aggressive Sound
Flowmaster 40 Delta Flow Muffler - 2.25 Center In / 2.25 Dual Out - Aggressive Sound
Universal Part | Part #: 9424422
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; 9.75; 4; 13; Aluminized Steel; 9.8; 9.75; Pipe Connection; 2.25; 2.25; Center; Center; Uses New Hangers (Not Included); Reflection; Pipe Connection; 2.25; 2.3; Dual; 19; Oval; Aggressive Sound
Price: $153.95
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Flowmaster Super 40 Muffler 409S - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound
Flowmaster Super 40 Muffler 409S - 3.00 Offset In / 3.00 Offset Out - Aggressive Sound
Universal Part | Part #: 853048
Highlights: Gray; Stainless Steel; Lifetime Limited Warranty; Durable fully welded 409 stainless steel; Excellent performance on high horsepower vehicles; Noticeable interior resonance; Deep Aggressive Sound Exhaust Note; 10; 5; 13.5; Stainless Steel; 10; 10; Pipe Connection; 3; 3; Offset; Uses New Hangers (Not Included); Reflection; Pipe Connection; 3; 3; Offset; 19.5; Oval; Aggressive Sound
Price: $170.95
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Gibson CFT Superflow Stainless Steel Oval Exhaust Muffler (Inlet 2.5", Outlet 2.5", Length 24")
Gibson CFT Superflow Stainless Steel Oval Exhaust Muffler (Inlet 2.5", Outlet 2.5", Length 24")
Universal Part | Part #: 55106S
Highlights: Stainless Steel; Dual / Dual; 2.5"; 2.5"; 4"; 9"; 18"; 24"; Oval; Dual
Price: $238.95
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Magnaflow 11" Oval Single/Dual Straight-Through Performance Muffler (2.5" Inlet, 28" Length)
Magnaflow 11" Oval Single/Dual Straight-Through Performance Muffler (2.5" Inlet, 28" Length)
Universal Part | Part #: 12580

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"; 22"; Stainless Steel; 11"; 2.5"; 1; Center; Straight-Through; 2.25"; 2; Dual; 28"; Oval
Price: $209.00
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Magnaflow 9" Oval Dual/Dual Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Magnaflow 9" Oval Dual/Dual Straight-Through Performance Muffler (2.5" Inlet, 20" Length)
Universal Part | Part #: 14386

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; 4"; 14"; Stainless Steel; 9"; 2.5"; 2; Dual; Straight-Through; 2.5"; 2; Dual; 20"; Oval
Price: $168.00
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Showing 361 to 378 of 867 (49 Pages)
Showing 361 to 378 of 867 (49 Pages)
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