MBRP Armor Lite S4203AL 3-Inch Cat-Back Exhaust System for 2016–2018 Ford Focus RS

THE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesn’t see much precipitation, or if you’re looking for great sound on a budget. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great. Armor Lite Cat Back Exhaust System; 3 in.; Incl. Front Pipe/Ext. Pipe/Over Axle Pipe/Tailpipes/Muffler/Hardware/Dual 4.5 in. OD Tips; Dual Rear Exit; Aluminized; 4.5in. Outside Diameter Tips Included.

• Heavy Duty Aluminized Steel, Fully Sealed Tubing for Rust Resistance. Improved Flow and Increased Horsepower. MBRP Signature Styling and Sound.
• Stainless Steel Tips Are Included
• Improved Torque And Horsepower
• Lower Exhaust Gas Temperatures
• Increased Throttle Response
• Utilizes OEM Hangers
• Mellow Exhaust Note
• 3 Year Warranty
• Bolt On Design

Upgrade your 2016–2018 Ford Focus RS with the MBRP Armor Lite S4203AL cat-back exhaust system. Designed to deliver the fitment, performance, and sound expected from MBRP, this value-focused system features 3-inch aluminized steel tubing, a dual rear exit, and dual 4.5-inch polished tips. It provides a deeper, more engaging exhaust note while supporting improved exhaust flow and responsive performance.

The MBRP Armor Lite S4203AL uses heavy-gauge aluminized steel tubing to help resist dents and corrosion in dry-climate applications. Mandrel-bent tubing maintains a consistent internal diameter through each bend, reducing restrictions and helping exhaust gases exit more efficiently. The result can include improved throttle response, increased torque and horsepower, and lower exhaust gas temperatures. The system is engineered as a bolt-on installation and uses factory hangers for a straightforward fit.

This complete cat-back package includes the front pipe, extension pipe, over-axle pipe, tailpipes, muffler, installation hardware, and stainless steel tips. Its mellow exhaust tone and MBRP signature styling provide a refined performance upgrade without excessive volume. The MBRP S4203AL is backed by a 3-year warranty and is intended for the 2016, 2017, and 2018 Ford Focus RS. Professional installation is recommended. This product may require acknowledgment of applicable emissions regulations before installation or use.

Product Specifications and Technical Data

• Brand: MBRP
• Part Number: S4203AL
• Series: Armor Lite
• System Type: Cat-back exhaust system
• Tubing Diameter: 3 inches
• Exit Configuration: Dual rear exit
• Tip Size: Dual 4.5-inch outside diameter tips
• Material: Aluminized steel tubing with stainless steel tips

What's Included

• Front pipe
• Extension pipe
• Over-axle pipe
• Tailpipes
• Muffler
• Dual stainless steel exhaust tips
• Installation hardware

Features:

• Heavy-Gauge Aluminized Steel: Fully sealed tubing helps resist rust and withstand debris-related dents in dry-climate applications.
• Mandrel-Bent Tubing: Maintains consistent tubing diameter through bends to support efficient exhaust flow and improved performance.
• Performance Benefits: Helps improve throttle response, torque, horsepower, and exhaust gas temperature control.
• Complete Bolt-On Design: Includes the required exhaust components and hardware, uses OEM hangers, and fits 2016–2018 Ford Focus RS models.

Fitments:
2016 Ford Focus RS
2017 Ford Focus RS
2018 Ford Focus RS

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1