Buick Mufflers

1990 Buick Reatta is a wonderful vehicle from the factory. The parts you will find in our catalog will help you bring the best out of your Reatta. We have 867 Mufflers available for your 1990 Reatta all priced at lowest possible price backed by FREE SHIPPING. 

We price match competitors ... Shop with confidence. 


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Magnaflow 8" Oval Single/Dual Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Magnaflow 8" Oval Single/Dual Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Universal Part | Part #: 12280

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"; 18"; Stainless Steel; 8"; 2.5"; 1; Center; Straight-Through; 2"; 2; Dual; 24"; Oval
Price: $164.00
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Magnaflow 6" Round Offset/Offset XL Performance Muffler (2" Inlet, 28" Length)
Magnaflow 6" Round Offset/Offset XL Performance Muffler (2" Inlet, 28" Length)
Universal Part | Part #: 13649

XL Mufflers are reflection style mufflers using a combination of perforated tubing and baffles to reduce unwanted resonance and increase exhaust flow.

Highlights: Satin; 6"; 22"; Stainless Steel; 6"; 2"; 1; Offset; Multi-Chamber; 2"; 1; Offset; 28"; Round
Price: $96.95
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Magnaflow 7" Round Single/Dual Straight-Through Performance Muffler (3" Inlet, 36" Length)
Magnaflow 7" Round Single/Dual Straight-Through Performance Muffler (3" Inlet, 36" Length)
Universal Part | Part #: 12762

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"; 30"; Stainless Steel; 7"; 3"; 1; Center; Straight-Through; 2.5"; 2; Dual; 36"; Round
Price: $236.00
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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 #: 14580

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"; 22"; Stainless Steel; 11"; 2.5"; 1; Center; Straight-Through; 2.25"; 2; Dual; 28"; Oval
Price: $176.43
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Borla XR-1 Series Multi-Core Center/Center Round Muffler (4" Diameter, 21" Length)
Borla XR-1 Series Multi-Core Center/Center Round Muffler (4" Diameter, 21" Length)
Universal Part | Part #: 400374
Highlights: 6.25"; 16"; 6.25"; All Welded; Pipe; Center; Single Center; 4"; T-304 Stainless Steel; No; No; 4"; Center; Single Center Outlet; 21"; Round
Price: $338.95
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Magnaflow 4" Round Center/Center Straight-Through Performance Muffler (2" Inlet, 28" Length)
Magnaflow 4" Round Center/Center Straight-Through Performance Muffler (2" Inlet, 28" Length)
Universal Part | Part #: 10434

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"; 22"; Stainless Steel; 4"; 2"; 1; Center; Straight-Through; 2"; 1; Center; 28"; Round
Price: $124.95
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Magnaflow 9" Oval Offset/Offset XL Performance Muffler (2.25" Inlet, 20" Length)
Magnaflow 9" Oval Offset/Offset XL Performance Muffler (2.25" Inlet, 20" Length)
Universal Part | Part #: 13235

XL Mufflers are reflection style mufflers using a combination of perforated tubing and baffles to reduce unwanted resonance and increase exhaust flow.

Highlights: Satin; 4"; 14"; Stainless Steel; 9"; 2.25"; 1; Offset; Multi-Chamber; 2.25"; 1; Offset; 20"; Oval
Price: $143.00
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Magnaflow 11" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 28" Length)
Magnaflow 11" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 28" Length)
Universal Part | Part #: 14586

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"; 22"; Stainless Steel; 11"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Offset; 28"; Oval
Price: $156.00
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Magnaflow 5" Round Center/Center Tunable Performance Muffler (2.25" Inlet, 18.875" Length)
Magnaflow 5" Round Center/Center Tunable Performance Muffler (2.25" Inlet, 18.875" Length)
Universal Part | Part #: 14856

Complete your custom exhaust with a straight-through design muffler with an integrated welded tip for a finished look and simple installation.

Highlights: Polished; 5"; 14"; Stainless Steel; 5"; 4"; Polished; 1.875"; Stainless Steel; 1; Round; Welded-On;Single Wall;Angle Cut;Cut Edge; 2.25"; 1; Center; Straight-Through; 1; Center; 18.875"; Round
Price: $194.95
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aFe MACH Force-Xp 409 Stainless Steel Muffler
aFe MACH Force-Xp 409 Stainless Steel Muffler
Universal Part | Part #: 49M00031

MACH Force-Xp 409 Stainless Steel Muffler 3 IN ID Center/Offset x 4 IN H x 9 IN W x 14 IN L - Oval Body

Highlights: Steel; 9"; 3"; Center; 3"; 1; 3"; Offset; Single Outlet; 14"; Oval; None; 2 Years Manufacturer Warranty
Price: $143.85
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Magnaflow 8" Oval Single/Dual Straight-Through Performance Muffler (2.25" Inlet, 20" Length)
Magnaflow 8" Oval Single/Dual Straight-Through Performance Muffler (2.25" Inlet, 20" Length)
Universal Part | Part #: 12138

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"; 14"; Stainless Steel; 8"; 2.25"; 1; Center; Straight-Through; 2.25"; 2; Dual; 20"; Oval
Price: $151.00
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Magnaflow 8" Oval Center/Center Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Magnaflow 8" Oval Center/Center Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Universal Part | Part #: 12246

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"; 18"; Stainless Steel; 8"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Center; 24"; Oval
Price: $139.00
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Magnaflow 7" Round Single/Dual XL Performance Muffler (3" Inlet, 30" Length)
Magnaflow 7" Round Single/Dual XL Performance Muffler (3" Inlet, 30" Length)
Universal Part | Part #: 13763

XL Mufflers are reflection style mufflers using a combination of perforated tubing and baffles to reduce unwanted resonance and increase exhaust flow.

Highlights: Satin; 7"; 24"; Stainless Steel; 7"; 3"; 1; Center; Multi-Chamber; 2.5"; 2; Dual; 30"; Round
Price: $138.00
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Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Magnaflow 9" Oval Center/Offset Straight-Through Performance Muffler (2.5" Inlet, 24" Length)
Universal Part | Part #: 14356

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"; 18"; Stainless Steel; 9"; 2.5"; 1; Center; Straight-Through; 2.5"; 1; Offset; 24"; Oval
Price: $148.96
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Borla Rock-It Boomers Muffler (2.25" Center Inlet, 4.5" Tip, 23.34" Length)
Borla Rock-It Boomers Muffler (2.25" Center Inlet, 4.5" Tip, 23.34" Length)
Universal Part | Part #: 40058
Highlights: 6.75"; 14"; 6.75"; All Welded; Pipe; Center; Single Center; 2.25"; T-304 Stainless Steel; No; 2.25"; Center; Single Center Outlet; 23.34"; Round; Polished T-304 Stainless Steel; 4"
Price: $305.99
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Magnaflow 11" Oval Center/Offset Straight-Through Performance Muffler (3" Inlet, 28" Length)
Magnaflow 11" Oval Center/Offset Straight-Through Performance Muffler (3" Inlet, 28" Length)
Universal Part | Part #: 14589

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"; 22"; Stainless Steel; 11"; 3"; 1; Center; Straight-Through; 3"; 1; Offset; 28"; Oval
Price: $172.00
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Magnaflow 8" Oval Center/Center Competition Core Performance Muffler (3" Inlet, 24" Length)
Magnaflow 8" Oval Center/Center Competition Core Performance Muffler (3" Inlet, 24" Length)
Universal Part | Part #: 14835

Complete your custom exhaust with a straight-through design muffler with an integrated welded tip for a finished look and simple installation.

Highlights: Polished; 5"; 14"; Stainless Steel; 8"; 4"; Polished; 6.375"; Stainless Steel; 1; Round; Welded-On;Double Wall;Angle Cut;Folded Edge; 3"; 1; Center; Straight-Through; 1; Center; 24"; Oval
Price: $223.95
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Magnaflow 3.5" Round Center/Center Glasspack Performance Muffler (2" Inlet, 30" Length)
Magnaflow 3.5" Round Center/Center Glasspack Performance Muffler (2" Inlet, 30" Length)
Universal Part | Part #: 18144

MagnaFlow Glasspack mufflers feature a reversible straight-through design and with single stage packing these mufflers bring back that classic deep glaspack sound.

Highlights: Aluminized; 3.5"; 26"; Aluminized Steel; 3.5"; 2"; 1; Center; Glasspack; 2"; 1; Center; 30"; Round
Price: $65.95
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Showing 685 to 702 of 867 (49 Pages)
Showing 685 to 702 of 867 (49 Pages)
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