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Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips Injen INJSES9004
Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips Injen INJSES9004
Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips Injen INJSES9004
Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips Injen INJSES9004
Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips Injen INJSES9004
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Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips

Injen
INJSES9004
843115027247
Catback
Out of stock
$ 1,581.66 $ 1,415.17
FREE Ground Shipping!

SKU: SES9004 | UPC: 843115027247

Injen 16-18 Ford Focus RS 3in Cat-Back Stainless Steel Exhaust w/ 4in Black Chrome Tips

Transform the sound and power of your 2016-2018 Ford Focus RS with the Injen SES9004 3-inch cat-back exhaust system crafted from T304 stainless steel. This direct-fit system adds up to 16 horsepower and 14 lb-ft of torque while delivering a deep aggressive tone. Engineered for seamless installation using factory hangers it bolts on without cutting or modifications.

Key Features

  • Dual 4in Black Chrome Tips: Bolt-on dual 4-inch black chrome tips provide a bold visual statement and enhance exhaust flow for improved performance.
  • Exhaust Valve Bypass Module (P/N 2002): Included module bypasses the factory valve for consistent rich crisp exhaust note without risk of valve failure.
  • OE-Style Fitment: Uses factory hangers and bushings for hassle-free bolt-on installation that flexes like stock during high-stress driving.
  • Dyno Proven Gains: Delivers 16 additional wheel horsepower and 14 lb-ft torque verified through extensive dyno testing at Injen headquarters.
  • T304 Stainless Steel Construction: Mandrel-bent 3-inch piping ensures durability corrosion resistance and lifetime structural integrity.

Product Notes

  • Requires no vehicle modifications or cutting for installation.
  • Produces aggressive exhaust sound with valve bypass engaged.
  • Ships freight via standard ground in a single oversized box.

Installation Notes

  • Professional installation recommended.
  • Bolt-on design uses existing factory mounting points and hangers.
  • Includes all necessary hardware and gaskets for complete fitment.

This Part Fits

Year Make Model Submodel
2016-2018 Ford Focus RS

Why Choose Injen?

  • Injen builds exhaust systems in Pomona California with over 20 years of automotive engineering experience.
  • Every system undergoes rigorous dyno testing for real-world power gains.
  • Made from premium T304 stainless steel for lasting performance and fit.

Frequently Asked Questions

  • Q: Will this exhaust fit my 2016-2018 Ford Focus RS?
    A: Yes the SES9004 is designed exclusively for 2016-2018 Ford Focus RS models with direct bolt-on installation using OE hangers.
  • Q: What material is used in this exhaust?
    A: Constructed from mandrel-bent T304 stainless steel tubing with 3-inch diameter piping and black chrome tips for corrosion resistance and strength.
  • Q: What is the warranty and installation process?
    A: Backed by Injen lifetime structural warranty. Installation takes 1-2 hours with basic tools as a direct replacement no welding or cutting needed.

Shipping & Handling

  • Method: Standard ground freight
  • Availability: In stock - ships same or next business day
  • Packaging: Oversized box dimensions 52in x 15in x 15in
  • Weight: 35 lbs
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