MagnaFlow CARB-Grade California-compliant direct-fit catalytic converter (5551194) for the 2007-2008 Chevrolet Silverado 1500 5.3L and 2007-2008 Chevrolet Tahoe 5.3L, plus Avalanche, Suburban 1500, GMC Sierra 1500, Yukon and Yukon XL 1500 applications. Spun-body 16-gauge 409 stainless construction with a single laser-fusion weld replicates the OE design for smooth flow and a leak-resistant seal; installs with no cutting or welding and includes gaskets and hardware for a leak-free seal. OE-sized 410 stainless barbed exhaust hangers reduce noise and vibration. CARB EO compliant for legal use in California and CARB states for the listed vehicles.
Specifications
| Type | Direct-fit catalytic converter (spun body) |
| Grade | CARB (California Grade) |
| Material | 16-gauge 409 stainless steel |
| Hardware | Gaskets and hardware included |
| Emissions | CARB compliant (CA legal) |
| Part Number | 5551194 |
Documents: Technical Bulletin (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2007-2008 | Chevrolet | Avalanche | LS |
| 2007-2008 | Chevrolet | Avalanche | LT |
| 2007-2008 | Chevrolet | Avalanche | LTZ |
| 2007-2008 | Chevrolet | Silverado 1500 | LS |
| 2007-2008 | Chevrolet | Silverado 1500 | LT |
| 2007-2008 | Chevrolet | Silverado 1500 | LTZ |
| 2007-2008 | Chevrolet | Silverado 1500 | WT |
| 2007-2008 | Chevrolet | Suburban 1500 | LS |
| 2007-2008 | Chevrolet | Suburban 1500 | LT |
| 2007-2008 | Chevrolet | Suburban 1500 | LTZ |
| 2007-2008 | Chevrolet | Tahoe | LS |
| 2007-2008 | Chevrolet | Tahoe | LT |
| 2007-2008 | Chevrolet | Tahoe | LTZ |
| 2007-2008 | Chevrolet | Tahoe | PPV |
| 2007-2008 | GMC | Sierra 1500 | SL |
| 2007-2008 | GMC | Sierra 1500 | SLE |
| 2007-2008 | GMC | Sierra 1500 | SLT |
| 2007-2008 | GMC | Sierra 1500 | WT |
| 2007-2008 | GMC | Yukon | SLE |
| 2007-2008 | GMC | Yukon | SLT |
| 2007-2008 | GMC | Yukon XL 1500 | SLE |
| 2007-2008 | GMC | Yukon XL 1500 | SLT |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
