Borla 140403 Cat-Back Exhaust System — official product image 1
Borla / Exhaust Systems

Borla Audi S4 Cat-Back Exhaust System (2000–2016)

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£3,071.95 VAT included. Shipping calculated for your destination.

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Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

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Choose the exact listed application and part number. Match the engine, model year, body, drivetrain, transmission and original exhaust arrangement in the applications and installation requirements below.

Borla cat-back exhaust system for the application and installation requirements shown below. Construction: T-304 stainless steel. Pipework uses mandrel bends. Sound specification: S-Type. Tip specification: Polished stainless steel.

Match the exact engine, model year, drivetrain, transmission and exhaust hardware for the selected part number.

Technical specifications

Specification Details
Product Cat-Back Exhaust System
Part numbers 140403, 14902
Pipe Diameter 140403: 2.5", 1.75"; 14902: 3"
Tip Size 140403: 3.5"; 14902: 3.14"
Tip Exit 140403: Dual Split Rear Exit; 14902: Dual Left Rear Exit
Sound S-Type

Vehicle applications

Years Model Engine Application Body Drive Transmission Exhaust configuration Matching part numbers
2010–2016 Audi S4 3.0L 6-cylinder petrol Sedan; 4-door AWD Automatic / Manual Fits S4 models With or Without Sport Differential; System contains a Merge X-Pipe; Oversize box shipping rates apply to this system Audi; S4; 2010–2016; 3.0L 6-cylinder petrol; Sedan; 4 passenger side doors; AWD; Automatic/Manual; Exact supplier configuration 140403
2000–2002 Audi S4 2.7L 6-cylinder turbocharged petrol Sedan; 4-door AWD Automatic / Manual Match the exact selected Borla part and original exhaust arrangement. Audi; S4; 2000–2002; 2.7L 6-cylinder turbocharged petrol; Sedan; 4 passenger side doors; AWD; Automatic/Manual; Exact supplier configuration 14902
2000–2002 Audi S4 2.7L 6-cylinder turbocharged petrol Wagon; 4-door AWD Automatic / Manual Match the exact selected Borla part and original exhaust arrangement. Audi; S4; 2000–2002; 2.7L 6-cylinder turbocharged petrol; Wagon; 4 passenger side doors; AWD; Automatic/Manual; Exact supplier configuration 14902

Available variants

Part number Application Sound and design
140403 2010–2016; Audi S4; 3.0L S-Type, Dual Split Rear Exit
14902 2000–2002; Audi S4; 2.7L S-Type, Dual Left Rear Exit

Installation and care

  • 140403: Fits S4 models With or Without Sport Differential
  • 140403: System contains a Merge X-Pipe
  • 140403: Oversize box shipping rates apply to this system

Follow Borla’s instructions for the selected part number before fitting.

Delivery, customs and taxes

Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders

Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment first

Check fit before you order

Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.

Check vehicle fitment
Need help with this product?

Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.

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Borla Audi S4 Cat-Back Exhaust System (2000–2016)
Borla Audi S4 Cat-Back Exhaust System (2000–2016)2010–2016; Audi S4; 3.0L / S-Type, Dual Split Rear Exit
Available to Order £3,071.95