MagnaFlow HM-Grade Federal/EPA-compliant direct-fit catalytic converter (23405) for the 2000-2005 Chevrolet Impala, 1997-2004 Buick Regal, and related GM W-body cars. Spun-body 409 stainless tubing with a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding, includes gaskets. Federal/EPA compliant (not for sale in California) - OBDII.
| Type | Direct-fit catalytic converter |
| Grade | HM-Grade |
| Material | 409 stainless steel (spun body) |
| Hardware | Includes gaskets |
| Emissions | Federal/EPA compliant (not for sale in California) - OBDII |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998 | Buick | Regal | 25th Anniversary Edition |
| 1997-2004 | Buick | Regal | GS |
| 2000 | Buick | Regal | GSE |
| 1997-2004 | Buick | Regal | LS |
| 2000 | Buick | Regal | LSE |
| 2000-2005 | Chevrolet | Impala | Base |
| 2000-2005 | Chevrolet | Impala | LS |
| 2003 | Chevrolet | Impala | LS Sport |
| 2003-2005 | Chevrolet | Impala | Police |
| 2004-2005 | Chevrolet | Impala | SS |
| 2005 | Chevrolet | Monte Carlo | LT |
| 2000-2005 | Chevrolet | Monte Carlo | SS |
| 2002 | Chevrolet | Monte Carlo | SS 35th Anniversary Edition |
| 2002 | Chevrolet | Monte Carlo | SS Dale Earnhardt Signature Edition |
| 2003 | Chevrolet | Monte Carlo | SS High Sport |
| 2003 | Chevrolet | Monte Carlo | SS Pace Car |
| 1998 | Oldsmobile | Intrigue | Base |
| 1998-1999 | Oldsmobile | Intrigue | GL |
| 1998-1999 | Oldsmobile | Intrigue | GLS |
| 1999 | Oldsmobile | Intrigue | GX |
| 1997-2003 | Pontiac | Grand Prix | GT |
| 1997-2003 | Pontiac | Grand Prix | GTP |
| 1997-2002 | Pontiac | Grand Prix | SE |
