GMC Yukon XL Performance Exhaust - Rear - Flowmaster - FlowFX Direct Fit Muffler - `21-`26
GMC Yukon XL Performance Exhaust - Rear - Flowmaster - FlowFX Direct Fit Muffler - `21-`26

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GMC Yukon XL Performance Exhaust - Rear - Flowmaster FlowFX Direct Fit Muffler (2021-2026). A direct-fit upgrade that adds a deeper, confident V8 tone to your 5.3L without the complexity of a full system.
Designed for GM 5.3L SUVs, the Flowmaster Flow FX muffler bolts to factory mounts with simple hand tools—no welding. Stainless steel construction with Flowmaster's Limited Lifetime Warranty. Tuned for a richer note and reduced in-cabin drone. Compatible with factory Single Out Rear (SOR) and Dual Out Rear (DOR). Testing has shown max dyno gains of 7 hp and 5 lb-ft at the wheels.
Features
- Direct-fit for 2021-2026 Yukon/Yukon XL 5.3L
- Fits SOR and DOR factory tailpipes
- Uses stock hangers; no welding required
- Stainless steel; Limited Lifetime Warranty
- Max dyno gains up to 7 hp/5 lb-ft; drone-reduction tuning
Questions or need help with your build? Call us. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations. Texas: 512-982-9393 | California: 562-981-6800
If you are considering multiple items, contact us for potential shipping discounts. We install on premises at both locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov









