SKU: 593100 | UPC: 700424676675
COBB SS 3″ Catback Exhaust – 2016-2018 Ford Focus RS
The COBB 593100 Stainless Steel 3″ Catback Exhaust is the #1 selling performance catback system for the 2016-2018 Ford Focus RS. Precision-engineered with mandrel-bent 3-inch T304 stainless steel tubing, high-flow mufflers, and a deep, aggressive tone, this system delivers improved exhaust flow, noticeable horsepower and torque gains, sharper throttle response, and a refined yet sporty sound the ultimate exhaust upgrade for any Focus RS build seeking better performance, weight savings, and an enhanced driving experience.
Key Features
- 3″ Mandrel-Bent T304 Stainless Steel Tubing – Smooth, unrestricted flow for maximum power and torque
- High-Flow Mufflers – Optimized for aggressive sound while maintaining street-friendly volume
- Direct Fit – Engineered specifically for 2016-2018 Ford Focus RS with perfect bolt-on installation
- Lightweight Design – Reduces overall vehicle weight compared to stock exhaust
- Durable Construction – Premium stainless steel resists corrosion and withstands high temperatures
| Spec | Detail |
|---|---|
| Part Number | 593100 |
| Brand | COBB Tuning |
| Type | SS 3″ Catback Exhaust System |
| Material | T304 Stainless Steel |
| Pipe Diameter | 3 inches |
| Compatibility | 2016-2018 Ford Focus RS |
| Country of Origin | United States |
| Warranty | COBB Limited Warranty |
Whats Included
- Complete 3″ stainless steel catback exhaust system
- All necessary hangers, clamps, and hardware
- Installation instructions
Product Notes
- Designed specifically for the 2016-2018 Ford Focus RS
- Improves exhaust flow for increased horsepower and torque
- Delivers a deep, sporty exhaust note without excessive drone
Installation Notes
- Bolt-on catback replacement
- Estimated time: 1–2 hours
- Professional installation recommended for proper alignment and leak-free fitment
This Part Fits
| Year Range | Make | Model | Trim / Engine | Notes |
|---|---|---|---|---|
| 2016-2018 | Ford | Focus RS | All trims | 3″ stainless steel catback exhaust |
Why Choose COBB Catback Exhaust Systems?
- #1 choice for high-quality performance exhaust on modern performance cars
- Built & tested in the United States
- Chosen by Focus RS owners for improved power, refined sound, and durable stainless construction
Frequently Asked Questions
- Q: Does this exhaust fit my 2017 Ford Focus RS?
A: Yes, direct fit for 2016-2018 Ford Focus RS models. - Q: Will it add power?
A: Yes 3″ mandrel-bent tubing improves exhaust flow for noticeable horsepower and torque gains. - Q: How does it sound?
A: Deep, sporty tone with minimal drone – aggressive but street-friendly.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Official COBB retail box





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