Exhaust Y-Pipe Catalytic Converter for Tahoe Yukon Suburban (2007-2009) with 4.8L 5.3L 6.0L Engines

Turn off that P0420 Check Engine Light and get your Silverado through inspection without spending thousands at the dealership.

Direct-Fit Catalytic Converter Y-Pipe for 2007-2009 Chevrolet Silverado 1500 (V8)

If you are driving a GMT900 Silverado 1500, you know these trucks are workhorses, but the emission systems have a shelf life. Whether it's due to the notorious AFM oil consumption issues clogging the honeycomb or just years of road salt rotting out the flanges, a failed catalytic converter is a common headache. This Direct-Fit Y-Pipe assembly is the solution. It replaces the entire front exhaust section—including both catalytic converters and the crossover pipe—solving exhaust leaks and efficiency codes in one shot.

Constructed with a durable stainless steel body and high-quality ceramic substrates, this unit is designed to scrub exhaust gases effectively to clear "Catalyst System Efficiency Below Threshold" codes. Unlike universal "weld-in" cats that require a muffler shop to install, this is a true bolt-on assembly. It features the correct flange orientation and O2 sensor bungs for the 4.8L, 5.3L, and 6.0L V8 engines, ensuring a factory-like fit without the need for cutting, bending, or welding.

This replacement pipe also addresses the common failure point at the flex section, which often unravels or cracks on the OEM units. By swapping the entire Y-pipe, you aren't just patching a problem; you are restoring the exhaust flow and backpressure to factory specifications. It’s the most cost-effective way to get your truck running clean, sounding right, and back on the road legally.

Why You Need This Upgrade

• Code Clearing Performance: Engineered with ceramic substrates to properly catalyze exhaust gases and turn off P0420/P0430 Check Engine Lights.
• Stainless Durability: Manufactured from stainless steel to withstand high exhaust temperatures and resist road corrosion better than aluminized steel.
• Complete Replacement: Replaces both bank 1 and bank 2 converters plus the Y-pipe crossover, eliminating multiple potential leak points.
• Factory Fitment: Designed as a direct replacement for the OEM assembly, utilizing factory hanger locations and flange connections.
• Restored Efficiency: clogged converters rob power and fuel economy; a fresh unit allows the engine to exhale properly.

Installation Notes

This is a bolt-on component, but rusted factory bolts can make removal difficult. We recommend soaking all flange bolts and O2 sensors with penetrating oil 24 hours prior to installation. Note: It is highly recommended to replace your Oxygen Sensors when installing new converters, as old sensors may provide lazy data that can damage the new catalyst. You may notice a smell during the first few drive cycles as the new materials "burn in"—this is normal.

Replaces These OEM Applications & Part Numbers

• 2009 Chevrolet Silverado 1500 LS Crew Cab Pickup 4-Door 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Crew Cab Pickup 4-Door 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Crew Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Crew Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Crew Cab Pickup 4-Door 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Extended Cab Pickup 4-Door 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Extended Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Extended Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Extended Cab Pickup 4-Door 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Standard Cab Pickup 2-Door 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Standard Cab Pickup 2-Door 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Standard Cab Pickup 2-Door 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LT Standard Cab Pickup 2-Door 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LTZ Crew Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LTZ Crew Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LTZ Crew Cab Pickup 4-Door 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LTZ Extended Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LTZ Extended Cab Pickup 4-Door 5.3L 5328CC 325Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 LTZ Extended Cab Pickup 4-Door 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
• 2009 Chevrolet Silverado 1500 WT Crew Cab Pickup 4-Door 4.8L 294Cu. In. V8 GAS OHV Naturally Aspirated

DPT-OEMCONV002, 645459, 50450, 0795218, 50469

Restore your Silverado's performance and clear the air—order your Direct-Fit Catalytic Converter Y-Pipe today.