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Roush Cat-Back Exhaust Kit (13-14 Focus ST) 421610

Roush Cat-Back Exhaust Kit (13-14 Focus ST) 421610


Market Price $679.99 You save $80 (12%)

Part # ROU-421610

Roush 421610

Ships Within 24 Hours

Availability: In stock



  • Bolt-on HP & torque
  • 3" diameter SS tubing
  • Straight-through muffler
  • 4" round exhaust tips
  • Reduced Back Pressure = Faster Turbo Spooling
    This Roush high-flow exhaust kit is designed to let the turbo on your EcoBoost Focus ST bra breathe. The straight-through designallows your turbo to spool faster reducing turbo lag and it also increases horsepower & torque while giving you that deep, throaty exhaust growl.

    Built To Last
    Made from mandrel bent, 409 stainless steel and engineered to bolt in place of the factory exhaust, this Roush Focus ST exhaust kit is built to last. The straight-through, perforated-tube muffler has been optimized for sound and performance and the twin chrome 4"round exhuast tips have the the Roush name stamped on them. This is one of the mostdurable and affordable exhaust systems designed for the Focus ST.

    - High-flow muffler
    - Mid & Y-pipe assemblies
    - Twin 4" exhaust tips
    - All necessary clamps & hardware

    Focus ST: 2013, 2014