Exhaust for 2015 Buick Regal
Select Exhaust part
Oxygen Sensor 4 Wire, Universal, Heated, Wire Length: 11.77
Denso
234-4212
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision...
Positions: Upstream
$31.89
Fits Your Vehicle
![84302 - Exhaust: CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/d62618d6ed22c84800faf472df0d057f.webp "84302 - Exhaust: CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) for Walker Exhaust")
CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)
Walker Exhaust
84302
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are...
Positions: Front
$236.76
Fits Your Vehicle
![84205 - Exhaust: CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/42d908e5a60c40e33bb98279126d5529.webp "84205 - Exhaust: CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID) for Walker Exhaust")
CalCat CARB Universal Catalytic Converter 2.25" Inlet (ID) 2.25" Outlet (ID)
Walker Exhaust
84205
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are...
Positions: Rear
$170.98
Fits Your Vehicle
![84206 - Exhaust: CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/5d25e6dc00af408b4d4df487e9ec08e7.webp "84206 - Exhaust: CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID) for Walker Exhaust")
CalCat CARB Universal Catalytic Converter 2.5" Inlet (ID) 2.5" Outlet (ID)
Walker Exhaust
84206
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are...
Positions: Rear
$171.09
Fits Your Vehicle
Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 21.65
Denso
234-4673
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision...
Positions: Upstream
$41.23
Fits Your Vehicle
Stud
ACDelco
11609953
GM Genuine Parts Studs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are...
$1.97
Fits Your Vehicle
![16776 - Exhaust: Ultra EPA Direct Fit Catalytic Converter 2.39" Outlet (OD) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/6ba931391527627bffc5602cbd85ec43.webp "16776 - Exhaust: Ultra EPA Direct Fit Catalytic Converter 2.39" Outlet (OD) for Walker Exhaust")
Ultra EPA Direct Fit Catalytic Converter 2.39" Outlet (OD)
Walker Exhaust
16776
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic...
Positions: Front
$305.48
Fits Your Vehicle
Oxygen Sensor
ACDelco
213-4299
GM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These...
Positions: Upstream
$61.64
Fits Your Vehicle
Multi-Purpose Relay
ACDelco
D1780C
ACDelco GM Original Equipment Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors....
$9.33
Fits Your Vehicle
Automatic Transmission Torque Converter
ACDelco
19259215
GM Genuine Parts Remanufactured Automatic Transmission Torque Converter are designed, engineered, and tested to rigorous standards, and...
$612.73
Fits Your Vehicle
CalCat CARB Direct Fit Catalytic Converter
Walker Exhaust
84355
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Direct-Fit Catalytic Converters are...
Positions: Front
Fits Your Vehicle
![50574 - : Exhaust Y Pipe 2.25" Inlet (OD) 2" Outlet (OD) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/9ab03e073c23c4a86488996d82faa988.webp "50574 - : Exhaust Y Pipe 2.25" Inlet (OD) 2" Outlet (OD) for Walker Exhaust")
Exhaust Y Pipe 2.25" Inlet (OD) 2" Outlet (OD)
Walker Exhaust
50574
Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a...
$112.81
Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 16.38
Denso
234-4526
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance; Each component is precision...
Positions: Downstream
$42.03
Fits Your Vehicle
![21834 - : Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/dd9cda399d7ee9053f25a732f06039cc.webp "21834 - : Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) for Walker Exhaust")
Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD)
Walker Exhaust
21834
Designed to deliver superior flow and OE-style sound, Walker® Quiet-Flow® mufflers are available for top-selling domestic and foreign...
$279.96
![21859 - : Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/9292e8dc5283eeab2dba354092177ab4.webp "21859 - : Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD) for Walker Exhaust")
Quiet-Flow Direct Fit Exhaust Muffler 2" Inlet (ID) 2.25" Outlet (OD)
Walker Exhaust
21859
Designed to deliver superior flow and OE-style sound, Walker® Quiet-Flow® mufflers are available for top-selling domestic and foreign...
$278.06
Ultra EPA Direct Fit Catalytic Converter
Walker Exhaust
54981
Designed to comply with EPA standards while delivering premium performance with assured compliance, Walker® Ultra® Direct-Fit Catalytic...
Positions: Rear
$296.25
Fits Your Vehicle
![21222 - : Direct Fit Exhaust Resonator and Pipe Assembly 2.25" Outlet (ID) for Walker Exhaust Image](http://cdn-product-images.revolutionparts.io/assets/4ef643a263de4e8c02d282d74a340b48.webp "21222 - : Direct Fit Exhaust Resonator and Pipe Assembly 2.25" Outlet (ID) for Walker Exhaust")
Direct Fit Exhaust Resonator and Pipe Assembly 2.25" Outlet (ID)
Walker Exhaust
21222
Designed to fit, perform and sound like the original system, Walker® resonators use precise tuning technologies to deliver excellent flow...
$75.63
Exhaust Gasket
ACDelco
24505057
GM Genuine Parts Multi-Purpose Gasket are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM...
Positions: Front, Rear
$13.52
Fits Your Vehicle
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