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SKU: B591100 | UPC: 799928865180
Cobb Ford Focus ST 2013-2018 SS 3in Catback Exhaust
The Cobb 3" stainless steel catback exhaust system replaces the stock exhaust from the catalytic converter back on 2013-2018 Ford Focus ST models. This direct bolt-on upgrade delivers noticeable horsepower and torque gains through improved exhaust flow and a deeper, aggressive tone without cabin drone. Engineered for the 2.0L EcoBoost, it enhances throttle response and overall driving experience.
Key Features
- T304L Stainless Steel Construction: Full 3" mandrel-bent tubing resists corrosion and ensures long-lasting durability under high heat.
- X-Pipe Over-Axle Design: Promotes smooth exhaust scavenging for better mid-range power and eliminates resonance or drone at highway speeds.
- Vibrant Performance Muffler: High-flow internal design reduces backpressure while refining sound to a sporty growl.
- Polished 4" Slash-Cut Tips: Dual 4.0" OD tips add a custom look and amplify exhaust note without excessive volume.
- Bolt-On Installation: Uses factory mounting points and hangers for precise fit with no fabrication needed; part number 591100.
Product Notes
- Designed as a complete catback replacement starting after the factory catalytic converters.
- dyno-tested gains of +10 whp and +12 ft-lbs torque on stock tune.
Installation Notes
- Professional installation recommended.
- Requires basic hand tools torque hangers to spec and use anti-seize on bolts.
- Compatible with stock cat, downpipe, and Accessport no O2 sensor or CEL issues.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2018 | Ford | Focus | ST |
Why Choose Cobb?
- Proven leader in Ford EcoBoost tuning with thousands of real-world installs.
- Made in USA with precision TIG-welding for leak-free performance.
- Backed by extensive R&D including dyno and track testing.
Frequently Asked Questions
-
Q: Will this fit my 2016 Ford Focus ST?
A: Yes, direct fit for all 2013-2018 Focus ST models with 2.0L EcoBoost; no modifications needed. -
Q: What material is used and does it rust?
A: T304L stainless steel throughout, fully polished tips, and mandrel-bent for corrosion resistance in all climates. -
Q: What is the warranty and install time?
A: Limited lifetime warranty on defects, average DIY install takes 1-2 hours with ramps or lift.
Shipping & Handling
- Method: Ground shipping
- Availability: In stock - ships same or next business day
- Packaging: Single oversized box, 52" L x 16" W x 16" H
- Weight: 28.6 lbs
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