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AUDI S4 Exhaust Systems

Audi S4

BORLA® AUDI S4 APPLICATIONS

Audi and cutting edge performance have long been synonymous, just as Borla’s exhaust systems are synonymous with innovations in sound and motorsports engineering. Upgrade your vehicle with the performance gains and the sports car sound you desire by installing a Borla Cat-Back Exhaust System on your Audi S4.

Like the hand crafted quality you have come to expect from your Audi, Borla designs and engineers our exhaust systems on a vehicle by vehicle basis, for optimal in-cabin sound while still providing deep tones throughout the RPM band. What better way to appreciate your Audi S4 Quattro than by installing a Borla T-304 austenitic stainless steel exhaust system and letting your engine reach new heights. Proven performance gains highlight each aspect of your vehicle’s acceleration and power.

With a million mile warranty, amazing sound and proven performance gains, a Borla exhaust system should be your first upgrade on any Audi S4.

2018 B9 Audi S4 Exhaust Systems = Available Now!

Model/Group Years System Type Pipe Diameter Tip Style Tip Exit Tip Size Part #
B5 S4 2000-2002 Cat-Back Exhaust part # 14902 2000-2002 Audi B5 S4 Quattro2.7T, Automatic/Manual AWD 4 Door 2000-2002 Cat-Back Exhaust "" 3" 18 Dual Left Rear Exit 3.14" 14902 View product B5 S4 2000-2002 Cat-Back Exhaust part # 14902
B8 S4 2010-2016 Cat-Back Exhaust S-Type part # 140403 2010-2016 Audi B8/B8.5 S4 3.0L Auto/Manual Trans AWD 4 Door (fits both w/Sport Diff or without) 2010-2016 Cat-Back Exhaust "S-Type" 2.5", 1.75" 18 Dual Split Rear Exit 3.5" 140403 View product B8 S4 2010-2016 Cat-Back Exhaust S-Type part # 140403
S4/ S5 2018 Cat-Back Exhaust S-Type part # 140740 2018 S4/ S5 3.0L Turbo Automatic/Manual Trans. All Wheel Drive 2 & 4 Door. 2018 Cat-Back Exhaust "S-Type" 2.5", 1.75" 18 Dual Split Rear Exit 3.5" 140740 View product S4/ S5 2018 Cat-Back Exhaust S-Type part # 140740
S4/ S5 2018 Cat-Back Exhaust S-Type part # 140740SB 2018 S4/ S5 3.0L Turbo Automatic/Manual Trans. All Wheel Drive 2 & 4 Door. 2018 Cat-Back Exhaust "S-Type" 2.5", 1.75" 67 Dual Split Rear Exit 3.5" 140740SB View product S4/ S5 2018 Cat-Back Exhaust S-Type part # 140740SB

BORLA® AUDI S4 CAT-BACK™ AND AXLE-BACK TECHNOLOGIES