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Audi S4

Shop Audi S4 aftermarket upgrades, from suspension, carbon fiber and FRP aero, wings, bumpers and other, to exhaust systems and custom-made aftermarket forged wheels
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ARMYTRIX Valvetronic Exhaust System Audi A4/A5 | S4/S5 3.0L TFSI 2009-2015
$3,680.00

ARMYTRIX Valvetronic Exhaust System Audi A4/A5 | S4/S5 3.0L TFSI 2009-2015
ARMYTRIX Valvetronic Exhaust System Audi S4 | S5 3.0L V6 Turbo B9 Non-OPF 2017+
$4,680.00

ARMYTRIX Valvetronic Exhaust System Audi S4 | S5 3.0L V6 Turbo B9 Non-OPF 2017+
ARMYTRIX Valvetronic Exhaust System with Gold Tips for B8 Audi A4 / A5 Sportback / S4 [AUBS4-QS11G]
$3,280.00

ARMYTRIX Valvetronic Exhaust System with Gold Tips for B8 Audi A4 / A5 Sportback / S4 [AUBS4-QS11G]
ARMYTRIX Valvetronic Exhaust System Audi S4 | S5 3.0L V6 Turbo B9 Non-OPF 2017+
$4,280.00

ARMYTRIX Valvetronic Exhaust System Audi S4 | S5 3.0L V6 Turbo B9 Non-OPF 2017+
ARMYTRIX Ceramic Coated Sport Cat Main Pipe w/200 CPSI Catalytic Converters Audi S4 | S5 B9 2017+
$2,050.00

ARMYTRIX Ceramic Coated Sport Cat Main Pipe w/200 CPSI Catalytic Converters Audi S4 | S5 B9 2017+
ARMYTRIX Sport Cat Main Pipe w/200 CPSI Catalytic Converters Audi S4 | S5 B9 2017+
$1,760.00

ARMYTRIX Sport Cat Main Pipe w/200 CPSI Catalytic Converters Audi S4 | S5 B9 2017+
ARMYTRIX Ceramic Coated High-Flow Performance Race Pipe Audi S4 | S5 B9 2017+
$1,350.00

ARMYTRIX Ceramic Coated High-Flow Performance Race Pipe Audi S4 | S5 B9 2017+
ARMYTRIX High-Flow Performance Race Pipe Audi S4 | S5 B9 2017+
$1,060.00

ARMYTRIX High-Flow Performance Race Pipe Audi S4 | S5 B9 2017+
ARMYTRIX Valvetronic Exhaust System w/ Carbon Tips for B9 Audi S4 (non-OPF) [AU94S-QC11]
$4,580.00

ARMYTRIX Valvetronic Exhaust System w/ Carbon Tips for B9 Audi S4 (non-OPF) [AU94S-QC11]
ARMYTRIX Valvetronic Exhaust System w/ Matte Black Tips for B9 Audi S4 (non-OPF) [AU94S-QS14M]
$4,280.00

ARMYTRIX Valvetronic Exhaust System w/ Matte Black Tips for B9 Audi S4 (non-OPF) [AU94S-QS14M]
ARMYTRIX Valvetronic Exhaust System w/ Blue Tips for B9 Audi S4 (non-OPF) [AU94S-QS14B]
$4,240.00

ARMYTRIX Valvetronic Exhaust System w/ Blue Tips for B9 Audi S4 (non-OPF) [AU94S-QS14B]
ARMYTRIX Valvetronic Exhaust System w/ Chrome Silver Tips for B9 Audi S4 (non-OPF) [AU94S-QS14C]
$3,980.00

ARMYTRIX Valvetronic Exhaust System w/ Chrome Silver Tips for B9 Audi S4 (non-OPF) [AU94S-QS14C]
ARMYTRIX Valvetronic Exhaust System Audi A4/A5 | S4/S5 3.0L TFSI 2009-2015
$3,580.00

ARMYTRIX Valvetronic Exhaust System Audi A4/A5 | S4/S5 3.0L TFSI 2009-2015
ARMYTRIX Valvetronic Exhaust System with Chrome Silver Tips for B8 Audi A4 / A5 Sportback / S4 / S5 Sportback [AUBS4-QS11C]
$2,980.00

ARMYTRIX Valvetronic Exhaust System with Chrome Silver Tips for B8 Audi A4 / A5 Sportback / S4 / S5 Sportback [AUBS4-QS11C]
ARMYTRIX Valvetronic Exhaust System with Matte Black Tips for B8 Audi A4 / A5 Sportback / S4 / S5 Sportback [AUBS4-QS11M]
$3,280.00

ARMYTRIX Valvetronic Exhaust System with Matte Black Tips for B8 Audi A4 / A5 Sportback / S4 / S5 Sportback [AUBS4-QS11M]
ARMYTRIX Valvetronic Exhaust System with Blue Tips for B8 Audi A4 / A5 Sportback / S4 / S5 Sportback [AUBS4-QS11B]
$3,240.00

ARMYTRIX Valvetronic Exhaust System with Blue Tips for B8 Audi A4 / A5 Sportback / S4 / S5 Sportback [AUBS4-QS11B]
Milltek Active Valve Controller for B9 Audi S4 / S5 and FY Audi SQ5
$734.00

Milltek Active Valve Controller for B9 Audi S4 / S5 and FY Audi SQ5
Milltek HJS Tuning ECE Downpipes for B9 Audi S4
$4,199.00

Milltek HJS Tuning ECE Downpipes for B9 Audi S4
Milltek Large Bore Downpipe with Hi-Flow Sports Pipe for B9 Audi S4 / S5 and C8 Audi A6 / A7
$2,473.00

Milltek Large Bore Downpipe with Hi-Flow Sports Pipe for B9 Audi S4 / S5 and C8 Audi A6 / A7
Milltek Valved & Resonated Catback Exhaust System w/ EC Approval for B9 Audi S4 and S5 Sportback (non-sport diff)
$3,403.00 – $4,211.00

Milltek Valved & Resonated Catback Exhaust System w/ EC Approval for B9 Audi S4 and S5 Sportback (non-sport diff)
Milltek Valved & Non-Resonated Catback Exhaust System for B9 Audi S4 / S5 Sportback (non-sport diff)
$3,189.00 – $3,997.00

Milltek Valved & Non-Resonated Catback Exhaust System for B9 Audi S4 / S5 Sportback (non-sport diff)
Milltek Resonated Catback Exhaust System for B8.5 Audi S4 / S5 Sportback
$2,945.00 – $3,173.00

Milltek Resonated Catback Exhaust System for B8.5 Audi S4 / S5 Sportback
Milltek Valved & Resonated Catback Exhaust System for B8.5 Audi S4 / S5
$4,050.00 – $4,442.00

Milltek Valved & Resonated Catback Exhaust System for B8.5 Audi S4 / S5
Milltek Resonated Race Catback Exhaust System for B8.5 Audi S4 / S5 Sportback
$2,645.00 – $2,873.00

Milltek Resonated Race Catback Exhaust System for B8.5 Audi S4 / S5 Sportback
Milltek Valved & Resonated Catback Exhaust System w/ Cerakote Black Tips for B8 Audi S4 and S5 Cabriolet
$4,682.00

Milltek Valved & Resonated Catback Exhaust System w/ Cerakote Black Tips for B8 Audi S4 and S5 Cabriolet
Milltek Resonated Race Catback Exhaust System w/ Cerakote Black Tips for B8 Audi S4 & S5 Sportback
$2,851.00

Milltek Resonated Race Catback Exhaust System w/ Cerakote Black Tips for B8 Audi S4 & S5 Sportback
Milltek Resonated Catback Exhaust System w/ EC Approval for B8 Audi S4 & S5 Sportback
$2,799.00 – $3,151.00

Milltek Resonated Catback Exhaust System w/ EC Approval for B8 Audi S4 & S5 Sportback
Capristo Valved Exhaust System with Mid-Pipes for B8 Audi S4 / S5
$6,000.00

Capristo Valved Exhaust System with Mid-Pipes for B8 Audi S4 / S5
Capristo Race Pipes for B8 Audi S4 / S5
$1,100.00

Capristo Race Pipes for B8 Audi S4 / S5
Capristo Front Pipes for B8 Audi S4 / S5
Original price was: $1,600.00.Current price is: $1,440.00.

Capristo Front Pipes for B8 Audi S4 / S5
Capristo Valved Exhaust System with Mid-Pipes and Carbon Tips for B9 & F5 Audi S4 / S5
$6,400.00

Capristo Valved Exhaust System with Mid-Pipes and Carbon Tips for B9 & F5 Audi S4 / S5
APR Performance Carbon Fiber GT-250 67″ Adjustable Wing for B8 Audi S4
Original price was: $2,428.00.Current price is: $2,428.00. $2,063.80

APR Performance Carbon Fiber GT-250 67″ Adjustable Wing for B8 Audi S4
APR Performance Carbon Fiber GTC-300 67″ Adjustable Wing for B8 Audi S4
Original price was: $2,129.00.Current price is: $2,129.00. $1,809.65

APR Performance Carbon Fiber GTC-300 67″ Adjustable Wing for B8 Audi S4
Aragosta 12K/10K Type S Suspension Kit w/ Pillowball & Rubber Upper Mounts for B5 Audi S4 Quattro
Original price was: $3,690.99.Current price is: $3,690.99. $3,137.34

Aragosta 12K/10K Type S Suspension Kit w/ Pillowball & Rubber Upper Mounts for B5 Audi S4 Quattro
Aragosta 12K/8K Type S Suspension Kit for B6 & B7 Audi S4
Original price was: $4,111.99.Current price is: $4,111.99. $3,495.19

Aragosta 12K/8K Type S Suspension Kit for B6 & B7 Audi S4
2017 – 2020 Audi A4, S4, A5, S5 (B9) FWD/Quattro – Öhlins DFV Road & Track suspension Upgrade [AUS MU00S1]
$2,990.00

2017 – 2020 Audi A4, S4, A5, S5 (B9) FWD/Quattro – Öhlins DFV Road & Track suspension Upgrade [AUS MU00S1]
2008 – 2016 Audi A4, S4, A5, S5 (B8) FWD/Quattro – Öhlins DFV Road & Track suspension Upgrade [AUS MS00S1]
$2,990.00

2008 – 2016 Audi A4, S4, A5, S5 (B8) FWD/Quattro – Öhlins DFV Road & Track suspension Upgrade [AUS MS00S1]
Rowen Premium 01S Exhaust +70mm Slide for 2008-16 Audi A4/S4 Avant [B8] 1A001Z02
$3,375.00

Rowen Premium 01S Exhaust +70mm Slide for 2008-16 Audi A4/S4 Avant [B8] 1A001Z02
Rowen LED Back Fog Lamp for 2008-16 Audi A4/S4 Avant [B8] 6L0001
$770.00

Rowen LED Back Fog Lamp for 2008-16 Audi A4/S4 Avant [B8] 6L0001
Rowen FRP Rear Under Diffuser for 2008-16 Audi A4/S4 Avant [B8] 1A001P20
$945.00

Rowen FRP Rear Under Diffuser for 2008-16 Audi A4/S4 Avant [B8] 1A001P20
Rowen Carbon Rear Under Diffuser for 2008-16 Audi A4/S4 Avant [B8] 1A001P30
$1,060.00

Rowen Carbon Rear Under Diffuser for 2008-16 Audi A4/S4 Avant [B8] 1A001P30
Rowen FRP Front Spoiler (FRP) for 2008-16 Audi A4/S4 Avant [B8] 1A001A20
$1,050.00

Rowen FRP Front Spoiler (FRP) for 2008-16 Audi A4/S4 Avant [B8] 1A001A20
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