MBRP S4203AL 3" Dual Rear Exit Cat-Back Exhaust for 16-18 Ford Focus RS EcoBoost

Vehicle Fitment

• 2016-2018 Ford Focus RS 2.3L EcoBoost

Fitment Notes

• Designed specifically for the Ford Focus RS with 2.3L EcoBoost turbocharged engine
• NOT compatible with Ford Focus ST or standard Focus models
• Eliminates factory exhaust valve system - electronic valve simulator plug included
• Installation requires cutting OE exhaust directly in front of rear axle assembly
• Uses factory exhaust hanger locations for direct bolt-on fitment
• Compatible with stock and tuned vehicles

Features

• Street Profile design delivers aggressive sound under throttle without highway drone
• Built-in Helmholtz resonator located above muffler cancels unwanted drone frequencies
• Full 3" mandrel-bent tubing maintains consistent diameter for maximum exhaust flow
• Delivers gains of 7+ horsepower and 8+ ft-lb of torque
• 10% increase in exhaust flow over factory system
• Dual rear exit configuration maintains factory exhaust location
• Polished T304 stainless steel dual wall tips resist heat transfer to body panels
• Fully sealed tubing prevents rust-through at seams
• Welded-on hangers for secure mounting

Specifications

• Part Number: S4203AL
• Series: Armor Lite (formerly Installer Series)
• Type: Cat-Back Exhaust System
• Profile: Street
• Tubing Diameter: 3" (76.2mm)
• Material: 16-Gauge Aluminized Steel
• Tip Size: 4-1/2" OD Dual Wall
• Tip Material: Polished T304 Stainless Steel
• Exit Style: Dual Rear Exit
• Sound Level: Moderate
• Warranty: 3 Years

Included Components

• Front Pipe Section
• Extension Pipe
• Over-Axle Pipe
• High-Flow Muffler with Helmholtz Resonator
• Dual Tailpipes
• 4-1/2" Polished Dual Wall Stainless Steel Tips (Qty: 2)
• Electronic Valve Simulator Plug
• Band Clamps
• Mounting Hardware
• Installation Instructions

Product Description

The MBRP S4203AL Armor Lite Cat-Back Exhaust System delivers performance and sound without breaking the budget for 2016-2018 Ford Focus RS owners. Built from 16-gauge aluminized steel with mandrel-bent 3" tubing, this system maximizes exhaust flow for gains of over 7 horsepower and 8 ft-lb of torque. The innovative Helmholtz resonator mounted above the muffler eliminates highway drone while allowing an aggressive exhaust note under acceleration - the perfect balance for daily driving and spirited weekend runs. The dual rear exit configuration features polished T304 stainless steel dual wall tips that resist heat transfer and maintain their shine. Since this system eliminates the factory exhaust valve, an electronic simulator plug is included to prevent check engine lights. Installation utilizes factory hanger locations for precise fitment, though cutting of the factory exhaust in front of the rear axle is required.