My Account About Us Help Desk
Go-Parts
Account About Us Help Desk
Cart 0
Your cart is empty
Add an item to see it appear here.
Catalytic Converter
View 1
View 2
View 3
View 4
View 5
View 6
View 7
View 8
View 9
View 10
View 11

Catalytic Converter (MagnaFlow Performance Exhaust) for 1981-1988 Buick, Chevrolet, GMC, Oldsmobile, & Pontiac NEW

Out of Stock
$ 170 .00

Product Notes

Direct-Fit Standard Grade Federal (Not legal for sale or use in CA, CO and NY)
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23427. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 1981-1987 Buick Regal, 1984-1988 Oldsmobile Cutlass Supreme, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.
Brand: MagnaFlow Performance Exhaust
Condition: New
See All Other Catalytic Converters
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info


Attribute Value
Air Tube Adaptable Yes
Air Tube Count 1
Body Material Stainless Steel
Body Type Clam-shell
CARB Executive Order Number Not Applicable
California Air Resources Board (CARB) Certified No
Clamps Included No
Grade Type Regular
Hangers Included No
Heat Shield Attached No
Inlet Gasket Included Yes
Inlet Mounting Hardware Included No
Outlet Gasket Included No
Outlet Mounting Hardware Included No
Sensor Port Count 0
Substrate Material Ceramic
Tube Material Stainless Steel

Vehicle Fitment Guide

This part fits the following vehicles:

Buick 4 models (tapclick to expand)(tapclick to hide)
Electra 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Estate Wagon Wagon 1984 V8 5.0L RWD Automatic
Estate Wagon Wagon 1984 V8 5.7L DIESEL RWD Automatic
Limited Coupe 1984 V6 4.1L RWD Automatic
Limited Coupe 1984 V8 5.0L RWD Automatic
Limited Sedan 1984 V6 4.1L RWD Automatic
Limited Sedan 1984 V8 5.0L RWD Automatic
Park Avenue Coupe 1984 V6 4.1L RWD Automatic
Park Avenue Coupe 1984 V8 5.0L RWD Automatic
Park Avenue Sedan 1984 V6 4.1L RWD Automatic
Park Avenue Sedan 1984 V8 5.0L RWD Automatic
LeSabre 1983-1985 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Collector's Edition Coupe 1985 V6 3.8L RWD Automatic
Collector's Edition Coupe 1985 V8 5.0L RWD Automatic
Collector's Edition Coupe 1985 V8 5.7L DIESEL RWD Automatic
Custom Coupe 1983 - 1985 V6 3.8L RWD Automatic
Custom Coupe 1983 - 1984 V6 4.1L RWD Automatic
Custom Coupe 1983 - 1985 V8 5.0L RWD Automatic
Custom Coupe 1983 - 1985 V8 5.7L DIESEL RWD Automatic
Custom Sedan 1983 - 1985 V6 3.8L RWD Automatic
Custom Sedan 1983 - 1984 V6 4.1L RWD Automatic
Custom Sedan 1983 - 1985 V8 5.0L RWD Automatic
Custom Sedan 1983 - 1985 V8 5.7L DIESEL RWD Automatic
Estate Wagon Wagon 1985 V8 5.0L RWD Automatic
Estate Wagon Wagon 1985 V8 5.7L DIESEL RWD Automatic
Limited Coupe 1983 - 1984 V6 3.8L RWD Automatic
Limited Coupe 1983 - 1984 V6 4.1L RWD Automatic
Limited Coupe 1983 - 1984 V8 5.0L RWD Automatic
Limited Coupe 1983 - 1984 V8 5.7L DIESEL RWD Automatic
Limited Sedan 1983 - 1985 V6 3.8L RWD Automatic
Limited Sedan 1983 - 1984 V6 4.1L RWD Automatic
Limited Sedan 1983 - 1985 V8 5.0L RWD Automatic
Limited Sedan 1983 - 1985 V8 5.7L DIESEL RWD Automatic
Regal 1981-1987 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 1983 - 1987 V8 5.0L RWD Automatic
Base Coupe 1982 - 1984 V6 4.1L RWD Automatic
Base Coupe 1982 - 1984 V6 4.3L DIESEL RWD Automatic
Base Coupe 1981 - 1987 V6 3.8L RWD Automatic
Base Coupe 1981 V6 3.8L RWD Manual
Base Coupe 1981 V8 4.3L RWD Automatic & Manual
Base Coupe 1981 - 1982 V8 4.4L RWD Automatic
Base Coupe 1981 V8 4.4L RWD Manual
Base Coupe 1981 - 1983, 1985 V8 5.7L DIESEL RWD Automatic
Base Coupe 1981 V8 5.7L DIESEL RWD Manual
Base Sedan 1983 - 1984 V8 5.0L RWD Automatic
Base Sedan 1982 - 1984 V6 3.8L RWD Automatic
Base Sedan 1982 - 1984 V6 4.1L RWD Automatic
Base Sedan 1982 - 1984 V6 4.3L DIESEL RWD Automatic
Base Sedan 1982 V8 4.4L RWD Automatic
Base Sedan 1982 - 1983 V8 5.7L DIESEL RWD Automatic
Estate Wagon Wagon 1982 - 1983 V6 3.8L RWD Automatic
Estate Wagon Wagon 1982 - 1983 V6 4.1L RWD Automatic
Estate Wagon Wagon 1982 - 1983 V8 5.0L RWD Automatic
Estate Wagon Wagon 1982 - 1983 V8 5.7L DIESEL RWD Automatic
GNX Coupe 1987 V6 3.8L Turbo RWD Automatic
Grand National Coupe 1984 - 1987 V6 3.8L Turbo RWD Automatic
Limited Coupe 1987 V6 3.8L Turbo RWD Automatic
Limited Coupe 1983, 1985 - 1987 V8 5.0L RWD Automatic
Limited Coupe 1982 - 1984 V6 4.1L RWD Automatic
Limited Coupe 1982 - 1985 V6 4.3L DIESEL RWD Automatic
Limited Coupe 1981 - 1987 V6 3.8L RWD Automatic
Limited Coupe 1981 V6 3.8L RWD Manual
Limited Coupe 1981 V8 4.3L RWD Automatic & Manual
Limited Coupe 1981 - 1982 V8 4.4L RWD Automatic
Limited Coupe 1981 V8 4.4L RWD Manual
Limited Coupe 1981 - 1983 V8 5.7L DIESEL RWD Automatic
Limited Coupe 1981 V8 5.7L DIESEL RWD Manual
Limited Sedan 1983 V8 5.0L RWD Automatic
Limited Sedan 1982 - 1984 V6 3.8L RWD Automatic
Limited Sedan 1982 - 1984 V6 4.1L RWD Automatic
Limited Sedan 1982 - 1984 V6 4.3L DIESEL RWD Automatic
Limited Sedan 1982 V8 4.4L RWD Automatic
Limited Sedan 1982 - 1983 V8 5.7L DIESEL RWD Automatic
Limited Turbo Coupe 1982 V6 4.1L RWD Automatic
Sport Coupe 1981 - 1982 V6 3.8L Turbo RWD Automatic
Sport Coupe 1981 V6 3.8L Turbo RWD Manual
Sport Coupe 1981 V8 5.7L DIESEL RWD Automatic & Manual
T-Type Coupe 1983 - 1986 V6 3.8L Turbo RWD Automatic
Riviera 1981-1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Convertible 1984 V6 3.8L Turbo FWD Automatic
Base Convertible 1983 - 1984 V6 4.1L FWD Automatic
Base Convertible 1983 - 1984 V8 5.0L FWD Automatic
Base Convertible 1983 - 1984 V8 5.7L DIESEL FWD Automatic
Base Coupe 1981, 1984 V6 3.8L Turbo FWD Automatic
Base Coupe 1981 - 1982, 1984 V6 4.1L FWD Automatic
Base Coupe 1981 - 1982, 1984 V8 5.0L FWD Automatic
Base Coupe 1981 - 1982, 1984 V8 5.7L DIESEL FWD Automatic
Limited Edition Convertible 1982 V6 4.1L FWD Automatic
Limited Edition Convertible 1982 V8 5.0L FWD Automatic
Limited Edition Convertible 1982 V8 5.7L DIESEL FWD Automatic
Luxury Coupe 1984 V6 3.8L Turbo FWD Automatic
Luxury Coupe 1983 - 1984 V6 4.1L FWD Automatic
Luxury Coupe 1983 - 1984 V8 5.0L FWD Automatic
Luxury Coupe 1983 - 1984 V8 5.7L DIESEL FWD Automatic
T-Type Coupe 1981 - 1984 V6 3.8L Turbo FWD Automatic
T-Type Coupe 1981 V6 4.1L FWD Automatic
T-Type Coupe 1981 V8 5.0L FWD Automatic
XX Anniversary Edition Coupe 1983 V6 4.1L FWD Automatic
XX Anniversary Edition Coupe 1983 V8 5.0L FWD Automatic
XX Anniversary Edition Coupe 1983 V8 5.7L DIESEL FWD Automatic
Chevrolet 4 models (tapclick to expand)(tapclick to hide)
Caprice 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Classic Coupe 1984 V6 3.8L RWD Automatic
Classic Coupe 1984 V8 5.0L RWD Automatic
Classic Coupe 1984 V8 5.7L DIESEL RWD Automatic
Classic Sedan 1984 V6 3.8L RWD Automatic
Classic Sedan 1984 V8 5.0L RWD Automatic
Classic Sedan 1984 V8 5.7L DIESEL RWD Automatic
Classic Wagon 1984 V6 3.8L RWD Automatic
Classic Wagon 1984 V8 5.0L RWD Automatic
Classic Wagon 1984 V8 5.7L DIESEL RWD Automatic
El Camino 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Standard Cab Pickup 1984 V6 3.8L RWD Automatic
Base Standard Cab Pickup 1984 V8 5.0L RWD Automatic
Base Standard Cab Pickup 1984 V8 5.7L DIESEL RWD Automatic
Conquista Standard Cab Pickup 1984 V6 3.8L RWD Automatic
Conquista Standard Cab Pickup 1984 V8 5.0L RWD Automatic
Conquista Standard Cab Pickup 1984 V8 5.7L DIESEL RWD Automatic
SS Standard Cab Pickup 1984 V6 3.8L RWD Automatic
SS Standard Cab Pickup 1984 V8 5.0L RWD Automatic
SS Standard Cab Pickup 1984 V8 5.7L DIESEL RWD Automatic
Impala 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 1984 V6 3.8L RWD Automatic
Base Sedan 1984 V8 5.0L RWD Automatic
Base Sedan 1984 V8 5.7L RWD Automatic
Base Sedan 1984 V8 5.7L DIESEL RWD Automatic
Monte Carlo 1981-1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 1982 - 1983 V6 4.3L DIESEL RWD Automatic
Base Coupe 1982 - 1984 V8 5.7L DIESEL RWD Automatic
Base Coupe 1981 - 1984 V6 3.8L RWD Automatic
Base Coupe 1981 V6 3.8L RWD Manual
Base Coupe 1981 V6 3.8L Turbo RWD Automatic & Manual
Base Coupe 1981 - 1982 V8 4.4L RWD Automatic
Base Coupe 1981 V8 4.4L RWD Manual
Base Coupe 1981 - 1984 V8 5.0L RWD Automatic
Base Coupe 1981 V8 5.0L RWD Manual
Base Coupe 1981 - 1984 V8 5.7L RWD Automatic
CL Coupe 1983 V6 3.8L RWD Automatic
CL Coupe 1983 V6 4.3L DIESEL RWD Automatic
CL Coupe 1983 V8 5.0L RWD Automatic
CL Coupe 1983 V8 5.7L DIESEL RWD Automatic
Landau Coupe 1981 V6 3.8L RWD Automatic & Manual
Landau Coupe 1981 V6 3.8L Turbo RWD Automatic & Manual
Landau Coupe 1981 V8 4.4L RWD Automatic & Manual
Landau Coupe 1981 V8 5.0L RWD Automatic & Manual
SS Coupe 1983 - 1984 V8 5.0L RWD Automatic
SS Coupe 1983 V8 5.7L DIESEL RWD Automatic
GMC 1 model (tapclick to expand)(tapclick to hide)
Caballero 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Amarillo Standard Cab Pickup 1984 V6 3.8L RWD Automatic
Amarillo Standard Cab Pickup 1984 V8 5.0L RWD Automatic
Amarillo Standard Cab Pickup 1984 V8 5.7L DIESEL RWD Automatic
Base Standard Cab Pickup 1984 V6 3.8L RWD Automatic
Base Standard Cab Pickup 1984 V8 5.0L RWD Automatic
Base Standard Cab Pickup 1984 V8 5.7L DIESEL RWD Automatic
Diablo Standard Cab Pickup 1984 V6 3.8L RWD Automatic
Diablo Standard Cab Pickup 1984 V8 5.0L RWD Automatic
Diablo Standard Cab Pickup 1984 V8 5.7L DIESEL RWD Automatic
Oldsmobile 5 models (tapclick to expand)(tapclick to hide)
Cutlass Calais 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 1984 V6 3.8L RWD Automatic
Base Coupe 1984 V6 4.3L DIESEL RWD Automatic
Base Coupe 1984 V8 5.0L RWD Automatic
Base Coupe 1984 V8 5.7L DIESEL RWD Automatic
Hurst Coupe 1984 V8 5.0L RWD Automatic
Cutlass Salon 1985-1987 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
442 Coupe 1985 - 1986 V8 5.0L RWD Automatic
Base Coupe 1985 - 1987 V6 3.8L RWD Automatic
Base Coupe 1985 - 1987 V8 5.0L RWD Automatic
Base Coupe 1985 V8 5.7L DIESEL RWD Automatic
Cutlass Supreme 1984-1988 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
442 Coupe 1987 V6 3.8L RWD Automatic
442 Coupe 1987 V8 5.0L RWD Automatic
Base Coupe 1988 V6 2.8L FWD Automatic & Manual
Base Coupe 1984 - 1987 V6 3.8L RWD Automatic
Base Coupe 1984 V6 4.3L DIESEL RWD Automatic
Base Coupe 1984 - 1987 V8 5.0L RWD Automatic
Base Coupe 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Base Sedan 1984 - 1987 V6 3.8L RWD Automatic
Base Sedan 1984 V6 4.3L DIESEL RWD Automatic
Base Sedan 1984 - 1987 V8 5.0L RWD Automatic
Base Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Brougham Coupe 1984 - 1987 V6 3.8L RWD Automatic
Brougham Coupe 1984 V6 4.3L DIESEL RWD Automatic
Brougham Coupe 1984 - 1987 V8 5.0L RWD Automatic
Brougham Coupe 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Brougham Sedan 1984 - 1987 V6 3.8L RWD Automatic
Brougham Sedan 1984 V6 4.3L DIESEL RWD Automatic
Brougham Sedan 1984 - 1987 V8 5.0L RWD Automatic
Brougham Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Classic Coupe 1988 V8 5.0L RWD Automatic
Classic Brougham Coupe 1988 V8 5.0L RWD Automatic
Indy 500 Pace Car Convertible 1988 V6 2.8L FWD Automatic & Manual
International Coupe 1988 V6 2.8L FWD Automatic & Manual
LS Coupe 1985 V6 3.8L RWD Automatic
LS Coupe 1985 V8 5.0L RWD Automatic
LS Coupe 1985 V8 5.7L DIESEL RWD Automatic
LS Sedan 1985 V6 3.8L RWD Automatic
LS Sedan 1985 V8 5.0L RWD Automatic
LS Sedan 1985 V8 5.7L DIESEL RWD Automatic
SL Coupe 1988 V6 2.8L FWD Automatic & Manual
Delta 88 1984-1985 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Royale Coupe 1984 - 1985 V6 3.8L RWD Automatic
Royale Coupe 1984 - 1985 V8 5.0L RWD Automatic
Royale Coupe 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Royale Sedan 1984 - 1985 V6 3.8L RWD Automatic
Royale Sedan 1984 - 1985 V8 5.0L RWD Automatic
Royale Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Royale Brougham Coupe 1984 - 1985 V6 3.8L RWD Automatic
Royale Brougham Coupe 1984 - 1985 V8 5.0L RWD Automatic
Royale Brougham Coupe 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Royale Brougham Sedan 1984 - 1985 V6 3.8L RWD Automatic
Royale Brougham Sedan 1984 - 1985 V8 5.0L RWD Automatic
Royale Brougham Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Royale Brougham LS Sedan 1984 V6 3.8L RWD Automatic
Royale Brougham LS Sedan 1984 - 1985 V8 5.0L RWD Automatic
Royale Brougham LS Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Toronado 1984 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Brougham Coupe 1984 V6 4.1L FWD Automatic
Brougham Coupe 1984 V8 5.0L FWD Automatic
Brougham Coupe 1984 V8 5.7L DIESEL FWD Automatic
Pontiac 3 models (tapclick to expand)(tapclick to hide)
Bonneville 1984-1986 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 1986 V6 4.3L RWD Automatic
Base Sedan 1984 - 1986 V6 3.8L RWD Automatic
Base Sedan 1984 - 1986 V8 5.0L RWD Automatic
Base Sedan 1984 V8 5.7L DIESEL RWD Automatic
Brougham Sedan 1986 V6 4.3L RWD Automatic
Brougham Sedan 1984 - 1986 V6 3.8L RWD Automatic
Brougham Sedan 1984 - 1986 V8 5.0L RWD Automatic
Brougham Sedan 1984 V8 5.7L DIESEL RWD Automatic
LE Sedan 1986 V6 4.3L RWD Automatic
LE Sedan 1984 - 1986 V6 3.8L RWD Automatic
LE Sedan 1984 - 1986 V8 5.0L RWD Automatic
LE Sedan 1984 V8 5.7L DIESEL RWD Automatic
Grand Prix 1983-1987 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Coupe 1986 - 1987 V6 4.3L RWD Automatic
Base Coupe 1983 - 1987 V6 3.8L RWD Automatic
Base Coupe 1983 - 1987 V8 5.0L RWD Automatic
Base Coupe 1983 - 1984 V8 5.7L DIESEL RWD Automatic
Brougham Coupe 1986 - 1987 V6 4.3L RWD Automatic
Brougham Coupe 1983 - 1987 V6 3.8L RWD Automatic
Brougham Coupe 1983 - 1987 V8 5.0L RWD Automatic
Brougham Coupe 1983 - 1984 V8 5.7L DIESEL RWD Automatic
LE Coupe 1986 - 1987 V6 4.3L RWD Automatic
LE Coupe 1984 - 1987 V6 3.8L RWD Automatic
LE Coupe 1984 - 1987 V8 5.0L RWD Automatic
LE Coupe 1984 V8 5.7L DIESEL RWD Automatic
LJ Coupe 1983 V6 3.8L RWD Automatic
LJ Coupe 1983 V8 5.0L RWD Automatic
LJ Coupe 1983 V8 5.7L DIESEL RWD Automatic
Parisienne 1984-1985 (tapclick to expand)(tapclick to hide)
Swipe left/right to see more info
SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base Sedan 1985 V6 4.3L RWD Automatic
Base Sedan 1984 - 1985 V6 3.8L RWD Automatic
Base Sedan 1984 - 1985 V8 5.0L RWD Automatic
Base Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Base Wagon 1985 V6 4.3L RWD Automatic
Base Wagon 1984 - 1985 V6 3.8L RWD Automatic
Base Wagon 1984 - 1985 V8 5.0L RWD Automatic
Base Wagon 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Brougham Sedan 1985 V6 4.3L RWD Automatic
Brougham Sedan 1984 - 1985 V6 3.8L RWD Automatic
Brougham Sedan 1984 - 1985 V8 5.0L RWD Automatic
Brougham Sedan 1984 - 1985 V8 5.7L DIESEL RWD Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23427. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow's state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 1981-1987 Buick Regal, 1984-1988 Oldsmobile Cutlass Supreme, and additional vehicles. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for pre-OBDII Federally registered vehicles.

Fits Years: 1981 1982 1983 1984 1985 1986 1987 1988

Fits Models: Bonneville, Caballero, Caprice, Cutlass Calais, Cutlass Salon, Cutlass Supreme, Delta 88, El Camino, Electra, Grand Prix, Impala, LeSabre, Monte Carlo, Parisienne, Regal, Riviera, Toronado

Go-Parts Garage · Featured Guide

A Comprehensive Guide to the 1975-1988 Buick Regal Catalytic Converter

Everything a Regal owner needs to know when facing a catalytic converter replacement.

Read Full Guide →
Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

Racing partner video
Racing partner video
Racing partner video
Racing partner video
×

Search by Vehicle

1
2
3
Added to cart · Part