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Borla Exhaust Systems Part #11921 Customer Reviews

Average Rating

1 Customer Review

Super satisfied!

Reviewed by Greg R (LEWISVILLE, TX) Reviewed for a 2017 Chevy Camaro — Sep 26, 2017 3:36 PM

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Woke up my car a lot! Would recommend for anyone trying to make their car louder!

Borla Exhaust Systems - 11921

Axle Back Exhaust - ATAK Series
  • $1,119.99
  • Free Shipping
  • Ships Between 8/22 - 8/24
  • What Do You Drive?


  • Style:
    2.75" Split rear exit, without Baffle valves, with quad 4" polished tips
  • Part #:
  • Bolt-in exhaust kit requires no cutting or welding
  • Main piping diameter: 2.75" into muffler, dual 2.5" out
  • 4" dual, round, rolled, angle-cut, polished tips
  • 2.75" inlet, 2.5" outlet Acoustically Tuned Applied Kinetics (ATAK) multi-core mufflers
  • ATAK mufflers have a louder tone than Touring and S-Type mufflers
  • No interior drone noise
  • Download installation instructions (PDF)
  • This system has dual tips and will fit vehicles equipped with Dual Mode Exhaust (NPP) but it does not include Dual Mode valves
  • This system can also be used on vehicles that came from the factory with two tips, but the rear bumper valance must be changed to accommodate four tips

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