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133 Borla products at FFP · MAP pricing · Thousand Oaks install
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Borla S-Type Axle-Back Exhaust - 2024-2026 Mustang EcoBoost S650 Carbon Fiber 11986CFBA
Backordered - Call or Email For ETA
- Borla S-Type Axle-Back for 2024-2026 Mustang EcoBoost
- T-304 stainless steel, 4 inch carbon fiber with black anodized base tips
- Fits coupe and convertible
- Million-Mile Warranty
Million-Mile Warranty
Borla covers every part for the life of your vehicle. The world's most experienced (and winningest) exhaust brand stands behind this part forever.
Authorized Borla dealer. Borla MAP pricing — same as Borla direct. Expert install available in Thousand Oaks, CA. Questions? Chat with Senna or call our Mustang specialist.
Sound character.
The Borla benchmark. Moderately aggressive at WOT, refined at cruise. The sound most owners pick first time.
The spec sheet.
Built like the most-winning exhaust brand means it.
California Prop 65 Warning
S-TYPE AXLE-BACK EXHAUST SYSTEM
2024-2026 Ford Mustang EcoBoost S650 | 2.3L EcoBoost Turbo I4 | Carbon fiber with black anodized base Tips
S-Type (Refined)
T-304 Stainless Steel
2.25″
4″ Quad Carbon fiber with black anodized base
HEAR THE BORLA
Borla S-Type on the 2024+ S650 Mustang EcoBoost
WHAT THIS DOES
The fastest bolt-on exhaust upgrade for the S650 EcoBoost. The axle-back is the rear section only — mufflers and tips. Keeps your factory mid-pipe and cats completely untouched. Unbolt two clamps, slide the stock mufflers off, bolt these on. Under an hour in a driveway.
S-Type tuning sits between stock and aggressive on volume. Gives the 2.3L turbo a deeper, more refined tone without the rasp that plagues most four-cylinder exhausts. Borla’s Polyphonic Harmonizer inside the muffler kills drone without restricting flow. Comfortable on a long highway drive.
Fits both coupe and convertible. Same part number, same install. The quad 4-inch carbon fiber with black anodized base tips fill the rear bumper cutouts on both body styles. No Active Exhaust on EcoBoost models — this is a direct bolt-on with no electronics to worry about.
WHAT IT’S MADE OF
T-304 stainless steel, not the T-409 that cheaper brands use. Won’t rust, pit, or discolor. Every bend is mandrel-bent (not crush-bent) for smooth flow, and each system is CNC-machined for bolt-on fitment. Made in the USA.
MADE IN USA
NO DRONE
T-304 STEEL
1M MILE WARRANTY
TIP OPTIONS
This listing is for the carbon fiber tips (11986CFBA). Borla also makes this same system with polished chrome tips (11986, $799.99) and black chrome tips (11986BC, $849.99). Same exhaust, different look at the rear. Contact us if you want a different tip finish.
SPECIFICATIONS
| Part Number | 11986CFBA |
| System Type | Axle-Back (rear section only) |
| Sound Level | S-Type (Refined) |
| Active Exhaust | N/A — EcoBoost does not have Active Exhaust |
| Pipe Diameter | 2.25″ into muffler |
| Tip Size / Shape | 4″ round, quad |
| Tip Finish | Carbon fiber with black anodized base |
| Exit Style | Dual split rear |
| Construction | T-304 stainless, mandrel-bent, CNC-machined |
| Muffler Tech | Polyphonic Harmonizer (multi-tone, no drone) |
| Body Style | EcoBoost Coupe and Convertible |
| Origin | Made in USA |
| Warranty | Borla Million-Mile Warranty |
CONFIRMED FITMENT
- 2024-2026 Ford Mustang EcoBoost 2.3L Turbo I4 — Coupe and Convertible
Auto and manual trans. Bolt-on install. Non-active exhaust (EcoBoost has no Active Exhaust option). Does NOT fit GT or Dark Horse.
Backed By
Borla Million-Mile Warranty
Will it fit your car.
| Vehicle | Years | Engine |
|---|---|---|
| Ford Mustang EcoBoost | 2024–2026 | 2.3L EcoBoost I4 |
FFP installs Borla weekly in Thousand Oaks.
— Why we stock this
This is the Borla part our customers ask for most.
If you want the install done by experienced Mustang techs who run Borla daily, drop the car off in Thousand Oaks. Otherwise, this is a direct bolt-on with clear instructions and clamp reuse from your existing Borla Cat-Back system.
Authority: Charles Siritho · McLaren Artura Trophy owner · Spotter for Branden Sorensen FD Pro (E46 LS+Whipple, 6th at Long Beach R1 2026) · 10 yrs S550/S650 Mustang specialist
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Shop the full Borla catalog at FFP.
133 Borla parts — Cat-Backs, Axle-Backs, X-Pipes, H-Pipes, Connecting Pipes — for Mustang, Corvette, Camaro, Silverado, F-150, and more. MAP pricing always. Expert install in Thousand Oaks.