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Discussion Starter · #1 ·
It’s no surprise that the installation of a performance exhaust system is one of the most common ways of adding extra power to any vehicle. Factory exhausts are designed to be a bit restrictive to meet the demands and noise and air pollution regulations while also trying to keep the optimal gas mileage. If extra power is your priority, you can enhance the way engine exhaust gases escape the system. The easier and smoother the flow, the more useful engine power can be delivered to the wheels.

aFe® - Apollo GT Series™ 409 SS Cat-Back Exhaust System with Single Side Exit

Fits: Ford F-150 2021


  • Exhaust System Type: Cat-Back
  • Exhaust Tubing Material: 409 SS
  • Exit Location: Single Side
  • Main Tubing Diameter: 3" to 3.5"
  • Exhaust System Sound: Aggressive / Loud
  • Muffler Body Material: 409 SS
  • Muffler Type: High-Flow
  • Tip Quantity: 1
  • Tip Finish: Polished
  • Tip Material: 304 SS
  • Tip Outlet Diameter: 4.5"
  • Tip Attachment Style: Clamp-On
  • Hardware Included: Yes
  • Horse Power Increase: +10 HP
  • Torque Gain: +11 Lbs. x Ft.


  • Increases horsepower and torque
  • Improves performance
  • Lowers exhaust gas temperature
  • Flow bench and dyno-tested
  • Welded hangers with swedged ends
  • Slotted and swedged ends
  • Premium-quality band clamps
  • Backed by a 2-year limited warranty
  • Proudly made in the USA

Look at this page for more details about the new aFe product release.
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