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Borla Cat-Back Exhaust - B8 S4 QUATTRO 4DR

Borla Cat-Back Exhaust - B8 S4 QUATTRO 4DR


(In stock)

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Borla Cat-Back Exhaust - B8 S4 QUATTRO 4DR

SKU: 140403

Quick Overview

  • Constructed from T304 stainless steel piping

  • Dual 2.5” piping which splits into quad 1.75” out of the rear mufflers

  • Quad Round Rolled 3.5” Angle-Cut tips

  • Increase performance and sound

  • Million Mile Warranty

Availability: In stock



Borla Cat-back exhaust system features patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere.

Each system is built from premium 300-series austenitic stainless steel, superior to T-400 series knock offs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA stands behind every system with a Million-Mile Warranty. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand!

Additional Information

Manufacturer Borla
Metal Finish No

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Make Model Year Submodel Drivetrain
Audi S4 2010 Sedan 3.0T
Audi S4 2011 Sedan 3.0T
Audi S4 2012 Sedan 3.0T
Audi S4 2013 Sedan 3.0T
Audi S4 2014 Sedan 3.0T
Audi S4 2015 Sedan 3.0T
Audi S4 2016 Sedan 3.0T
Audi S4 2017 Sedan 3.0T