AWE Tuning 3015-43221 0FG Catback Diamond Black 2021-2026 Suburban Yukon XL

Vehicle Fitment

• 2021-2026 Chevrolet Suburban (LS, LT, Z71, RST, Premier, High Country - 6.2L V8 L87, Long Wheelbase, 2WD/4WD)
• 2021-2026 GMC Yukon XL (SLE, SLT, AT4, Denali - 6.2L V8 L87, Long Wheelbase, 2WD/4WD)

Fitment Notes

• Fits long wheelbase models only - Suburban and Yukon XL; does NOT fit the Chevrolet Tahoe or GMC Yukon (short wheelbase), which require AWE SKU 3015-42121 (Chrome Silver) or 3015-43121 (Diamond Black)
• Fits the 6.2L V8 L87 engine only - does not fit Suburban or Yukon XL equipped with the 5.3L V8 or 3.0L diesel
• Ball & socket joints on all four tip outlets ensure precise fitment in the factory rear valance across all applicable Suburban and Yukon XL trim levels
• For the same long wheelbase fitment with Chrome Silver tips instead of Diamond Black, use AWE SKU 3015-42221
• Direct bolt-on installation - no cutting, welding, or ECU tune required

Features

• True dual 3" catback configuration with front pipes that begin directly after the factory emissions equipment for maximum flow and performance potential
• Precision-engineered X-pipe tuned specifically for the 6.2L V8 L87 to produce a rich, deep, refined V8 tone with minimal rasp
• AWE 180 Technology® patented drone-canceling resonator eliminates cabin drone at highway cruise while unleashing an aggressive note at wide open throttle
• Quad 4.5" double-walled Diamond Black tips with ball & socket joints for perfectly flush fitment in the factory rear valance - AWE logo stamped on each tip
• Long-wheelbase-specific pipe routing and components engineered to fit the Suburban and Yukon XL's extended chassis dimensions
• Handcrafted from CNC mandrel-bent U.S.-sourced .065" wall T304L stainless steel throughout for long-term durability and corrosion resistance
• Clean, straight-through design maximizes exhaust flow and reduces restriction
• AWE Fitment Guarantee - engineered for perfect fitment, every time
• AWE No Check Engine Light Guarantee - no CEL when installed properly
• 50-state emissions legal - does not interfere with any factory emissions equipment
• No ECU tune required
• Proudly designed, engineered, and manufactured in-house at AWE in Horsham, Pennsylvania, USA
• Backed by AWE's lifetime exhaust warranty

Specifications

• Material: CNC mandrel-bent T304L stainless steel
• Wall Thickness: .065"
• Pipe Diameter: Full 3" true dual catback configuration
• Crossover: Precision-engineered X-pipe (tuned for 6.2L V8)
• Tip Style: 4.5" double-walled, AWE logo stamped - Diamond Black
• Tip Quantity: 4 (quad, dual exit)
• Tip Joints: Ball & socket for perfect valance fitment
• Drone Control: AWE 180 Technology® patented resonator
• Wheelbase: Long wheelbase (Suburban / Yukon XL) only
• Emissions: 50-state legal
• Tune Required: No
• Origin: Made in USA (Horsham, PA)
• Warranty: Lifetime

Included Components

• 1x Complete true dual 3" catback exhaust assembly with X-pipe and 180 Technology® resonators
• 1x Long-wheelbase-specific front pipe set (beginning directly after factory emissions equipment)
• 4x 4.5" double-walled Diamond Black tips (AWE logo stamped, ball & socket jointed)
• 1x Wheelbase-specific hardware and mounting clamps
• 1x Installation instructions

Product Description

The AWE Tuning 3015-43221 is a true dual 3" 0FG catback exhaust system precision-engineered for the 2021-2026 Chevrolet Suburban and GMC Yukon XL equipped with the 6.2L V8 L87 engine, finished with signature quad 4.5" double-walled Diamond Black tips. This is the long-wheelbase variant of the 0FG suite - featuring model-specific front pipe routing and components dimensioned for the Suburban and Yukon XL's extended chassis. Front pipes begin directly after the factory emissions equipment, routing to a precision-engineered X-pipe tuned for the 6.2L V8's exhaust character, then through AWE's patented 180 Technology® drone-canceling resonators for a rich, deep V8 tone under throttle and a drone-free cabin at cruise.

Handcrafted from CNC mandrel-bent U.S.-sourced .065" wall T304L stainless steel at AWE's Horsham, Pennsylvania facility, the system installs as a direct bolt-on with no cutting or welding required. The quad 4.5" double-walled Diamond Black tips feature ball & socket joints for precise, flush fitment in the factory rear valance and are stamped with the AWE logo. The system is 50-state legal, requires no ECU tune, and is backed by AWE's Fitment Guarantee, No CEL Guarantee, and lifetime exhaust warranty.