The S-Type Axle-Back Exhaust System brings Borla's S-Type character to the rear of the exhaust, adding bite under acceleration while keeping drone out of the cabin. Borla tuned the muffler for this vehicle so the S-Type edge matches its engine. This is Borla part 11977, designed for the 2021-2026 Ford Bronco.
Installation is not included, and any optional Borla part called out in the fit notes is sold separately.
Features
Signature S-Type tone
S-Type is the classic Borla voice, aggressive when you accelerate and refined at cruise, sitting between Touring and ATAK in volume.
A drone-free cabin ride
Borla states that the systems in this group produce no drone inside the vehicle.
Affordable rear-section upgrade
Replacing the exhaust from the rear axle back costs less than a Cat-Back and still gives a distinct Borla note, though with a less full-bodied sound.
Mandrel bends, T-304 stainless
Mandrel-formed tubing keeps flow smooth through every bend, and T-304 austenitic stainless steel resists corrosion and heat better than 409 or aluminized steel.
CNC-made for a precise fit
Computer numerical control manufacturing keeps each piece true to the vehicle it was designed for.
Covered by the Million-Mile Warranty
Borla covers material and workmanship defects for the original buyer on the original vehicle, with one year on finishes and moving parts.
Fitment & Compatibility
Fit guidance: Fits: 2021-2026 Ford Bronco, with the engine, cab, bed and trim qualifiers shown. Check your vehicle against these notes before ordering.
Qualifier: 2.7L EcoBoost V6; 2-door or 4-door; 4WD; automatic
Borla fit notes for this part
| Fits the 2.7L EcoBoost V6 Bronco (not Bronco Sport or Raptor). |
Specifications
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Brand: Borla
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Sound level: S-Type
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Warranty: Borla Million-Mile Warranty (one year on carbon fiber, black coatings, tip finishes and moving parts)
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Material: T-304 stainless steel
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Tube Bends: Mandrel-bent
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Pipe Diameter: 2.75" Into Dual 2.5"
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Tip Size: 4"
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Tip Exit: Vehicle Single Split Rear Exit
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Product weight: 28.2 lb
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Part numbers: 11977, 11977CB
Tip finish options
| Tip finish |
Borla part number |
| Polished Stainless |
11977 |
| Ceramic Black |
11977CB |
California Proposition 65
WARNING: This product in the physical form it is sold does not present a hazard. However, operations including, but not limited to welding, brazing or thermal cutting can expose you to chemicals including chromium, nickel, cobalt, arsenic, cadmium and lead, which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Installation
Type: Axle-Back exhaust system · Install: vehicle-specific; method varies by application · Tools: listed on the Borla install sheet
This system replaces the rear exhaust section and connects to the factory piping ahead of it. The fit notes below and the Borla install sheet describe the steps for this vehicle.
Borla's installation instructions for this part number are linked under Resources. Read them fully before starting.
Resources
Warranty, Shipping & Returns
Warranty. Borla covers its products under the Million-Mile Warranty, which protects the original purchaser of record, on the vehicle the part was first installed on, against defects in materials or workmanship for a million miles. Carbon fiber, black coatings, tip finishes and moving parts such as valves and actuators carry a one-year term, and appearance blemishes from weather, road hazards, lack of maintenance or temperature extremes are not covered. When Borla's inspection confirms a defect, Borla repairs or replaces the part at its option. The warranty does not pay for removal or reinstallation, does not apply to parts damaged by accident, abuse, misuse, misapplication or modification, and does not cover sound level, because sound is a matter of taste. Shipping. The carrier and ship method are set by the size and weight of the carton when the order is placed; long exhaust systems ship in oversize cartons. Inspect on delivery. When the carton arrives, open it and check every pipe, muffler, clamp and hanger against the parts list before you start the install, and report any shipping damage right away with photos.
Returns. Unused items in their original packaging can be returned within 30 days of delivery. If an item arrives damaged, defective or wrong, return shipping is on us. See our Returns & Refunds Policy, or email support@prestigetruck.com with any question.
About Borla
Borla began in 1978 building stainless exhaust systems for concours Rolls-Royce and Ferrari restorations, and the company has grown into a leading name in stainless performance exhaust for cars and vehicles.
Each Borla system starts as a clean-sheet design for one vehicle. Engineers at the research and development center in Oxnard, California shape the muffler bodies, internal cores and flow paths around that platform's own mechanical and acoustic traits, then offer the result in a choice of Touring, S-Type or ATAK sound.
Production happens at a 100-acre plant in Johnson City, Tennessee, where raw stainless steel is cut, bent, welded and shipped. Borla also supplies factory-installed accessory exhaust to automakers such as GM, Ford and Toyota.