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Manufacturer information. Check the part number and installation requirements for your vehicle.
Supplier details checked 2026-09-23 · Test catalog
21-26 Tahoe, Yukon, Yukon XL, Suburban 5.3L Flow FX Cat-Back Single Exit (SOR)
Flowmaster Flow FX Cat-Back Exhaust System
Engineered to help minimize and eliminate unwanted in-cabin drone
Clean direct fit installation using factory style mounting points
Deep, refined Flow FX V8 tone with a subtle single exit finish
Flow optimized design supports a stronger performance feel
Backed by Flowmaster Limited Lifetime Warranty
Flowmaster 21-26 Chevrolet Tahoe 5.3L FlowFx Direct Fit Muffler - Single Exit
2126 CHEVY TAHOE 53L FFX CB SOR
SYS 21+ GM SUV 5.3L
On cold start, you get a confident presence. Around town, the sound is rich and premium. When you hit the gas, Flow FX adds the character that makes driving a V8 SUV feel special again, whether you are merging, towing, or just enjoying an empty stretch of road. When the miles stack up, the sound profile is tuned to help minimize and eliminate unwanted in-cabin drone, so the cabin stays comfortable for real life. That means conversations stay easy, music stays clear, and long drives stay enjoyable.
Engineered as a direct bolt on cat back for select late model GM SUVs, FlowFX installs with a clean fit and stainless steel durability built for the long haul. It is backed by the Flowmaster Limited Lifetime Warranty, because the right sound should not come with compromises. This is the balance of bold tone and calm cruising that makes an everyday SUV feel more personal.
Not every upgrade needs a louder look. Sometimes the most satisfying changes are the ones you feel every day. The Flow FX Single Exit Cat Back gives your GM SUV a deep, refined V8 tone with a clean, understated rear exit that keeps the vehicle looking factory sharp, only better. It is the performance choice for drivers who want their vehilce presence.
