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Audi S4 (B9) Tuning & Performance Parts

Shop Online for a wide range of S4 B9 Parts, Tuning and Accessories. Performance parts and tuning from the leading manufacturers with large stocks and interest free finance available.
 

S4 B9 Accessories S4 B9 Air Ride Kits S4 B9 Anti Roll Bars S4 B9 Badges S4 B9 Big Brake Kits S4 B9 bodystyling S4 B9 brake discs S4 B9 brake hoses S4 B9 brake pads S4 B9 bushes S4 B9 powerflex bushes S4 B9 Superpro bushes S4 B9 cleaning S4 B9 clutches flywheels S4 B9 coilovers S4 B9 control armsS4 B9 cruise control S4 B9 differentials S4 B9 diverter valves S4 B9 engine bay styling S4 B9 engine mounts S4 B9 engine tuning S4 B9 exhausts S4 B9 gauges pods S4 B9 induction kits S4 B9 intercoolers S4 B9 interior styling S4 B9 lowering springs S4 B9 Maintenance S4 B9 air filters S4 B9 remaps software S4 B9 shifter S4 B9 silicon hoses S4 B9 dampers shocks S4 B9 spring and damper kits S4 B9 Tuning Box S4 B9 Alloy Wheels S4 B9 Wheel Spacers

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  • Performance VW Magazine - March 2026
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    Performance VW Magazine - March 2026

    Performance VW Magazine - March 2026 Issue Fancy something good to read whilst you're on your break? Love VW's and the culture that comes with modifying them? Look no further! We have in stock the latest issue of Performance VW Magazine.  The...

    £5.75
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  • sale
    034Motorsport Density Line Bump Stops - Front - 56mm 034Motorsport Density Line Bump Stops - Front - 56mm
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    034Motorsport Density Line Bump Stops - Front - 56mm

    Engineered Travel. Tuned Control. Superior Comfort: 034Motorsport Density Line Bump Stops are built to address one of the most common issues that comes with lowering a vehicle: the loss of usable suspension travel. When the suspension runs out of room to...

    Was £16.48
    £14.83
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  • sale
    034Motorsport Density Line Bump Stops - Rear - 81mm 034Motorsport Density Line Bump Stops - Rear - 81mm
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    034Motorsport Density Line Bump Stops - Rear - 81mm

    Engineered Travel. Tuned Control. Superior Comfort: 034Motorsport Density Line Bump Stops are built to address one of the most common issues that comes with lowering a vehicle: the loss of usable suspension travel. When the suspension runs out of room to...

    Was £23.06
    £20.75
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  •  ECS Tuning Billet Engine Oil Dipstick - 3.0TFSI S4 B9 / S5 B9 (ES3545565)  ECS Tuning Billet Engine Oil Dipstick - 3.0TFSI S4 B9 / S5 B9 (ES3545565)
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    ECS Tuning Billet Engine Oil Dipstick - 3.0TFSI S4 B9 / S5 B9

    ECS Tuning Billet Engine Oil Dipstick - 3.0TFSI S4 B9 / S5 B9 ECS Billet Aluminum Engine Oil Dipsticks are a durable and beautiful upgrade that look as good as they perform!Engineered in-house and manufactured in the U.S.A., you can expect nothing short...

    £110.91
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  • Sold out
    Performance VW Magazine - February 2026

    Performance VW Magazine - February 2026

    Performance VW Magazine - February 2026 IssueFree Event Calendar Included with this months issue!  Fancy something good to read whilst you're on your break? Love VW's and the culture that comes with modifying them? Look no further! We have in...

    £5.75
  • sale
    034Motorsport Heavy Duty Tie Rod End Kit, B9/B9.5 & C8 Audi 034Motorsport Heavy Duty Tie Rod End Kit, B9/B9.5 & C8 Audi
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    034Motorsport Heavy Duty Tie Rod End Kit, B9/B9.5 & C8 Audi

    Product Description: Upgrade steering precision and long-term durability with the 034Motorsport Heavy Duty Tie Rod End Kit for B9/B9.5 & C8 Audi models. Designed as direct, drop-in replacements for the factory outer tie rods, this kit is ideal for...

    Was £158.18
    £142.36
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  • sale
    TTE850 EA839 3.0 (6663) – Upgrade Turbocharger TTE850 EA839 3.0 (6663) – Upgrade Turbocharger

    TTE850 EA839 3.0 (6663) – Upgrade Turbocharger

    TE850 EA839 3.0 (6663) – Upgrade Turbocharger: The TTE850 EA839 3.0 is the newest evolution evolved from the famous TTE810+ and brings a more power and better longevity through lower exhaust backpressure and lower exhaust gas temperatures. The...

    Was £5,654.88
    £5,089.39
  • Performance VW Magazine - January 2026
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    Performance VW Magazine - January 2026

    Performance VW Magazine - January 2026 Issue Fancy something good to read whilst you're on your break? Love VW's and the culture that comes with modifying them? Look no further! We have in stock the latest issue of Performance VW Magazine...

    £5.75
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  • VBT VRF770 DOT 4 Racing Brake Fluid - 500ml VBT VRF770 DOT 4 Racing Brake Fluid - 500ml
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    VBT VRF770 DOT 4 Racing Brake Fluid - 500ml

    VBT VRF770 Racing Brake Fluid is 100% synthetic brake fluid meeting DOT 4 specification. Extreme thermal resistance and stability Very high boiling point: 320°C  100% Synthetic Racing Fluid – DOT 4 Enables to keep efficient braking...

    £16.19
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  • Performance VW Magazine - December 2025 (AWE-PVW-MAG-DEC25)
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    Performance VW Magazine - December 2025

    Performance VW Magazine - December 2025 Issue Fancy something good to read whilst you're on your break? Love VW's and the culture that comes with modifying them? Look no further! We have in stock the latest issue of Performance VW Magazine...

    £5.75
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    034Motorsport RS+ Injector Upgrade Kit - EA839 3.0T & 2.9T 034Motorsport RS+ Injector Upgrade Kit - EA839 3.0T & 2.9T
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    034Motorsport RS+ Injector Upgrade Kit - EA839 3.0T & 2.9T

    PRODUCT DESCRIPTION: 034Motorsport has continued to be a leading innovator in developing key upgrades and overcoming the limits found on the EA839 platform to increase performance reliably and safely. The performance gains that Dynamic+ software files...

    Was £2,636.30
    £2,372.67
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  • Performance VW Magazine - November 2025 (AWE-PVW-MAG-NOV25)
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    Performance VW Magazine - November 2025

    Performance VW Magazine - November 2025 Issue Fancy something good to read whilst you're on your break? Love VW's and the culture that comes with modifying them? Look no further! We have in stock the latest issue of Performance VW Magazine...

    £5.75
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  • 034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi RS4/RS5 034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi RS4/RS5

    034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi RS4/RS5

    Product Description: The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5, & RS4/RS5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory...

    £1,115.15
    Was £1,239.06
  • 034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5 034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5

    034 Motorsport - 2-Piece Floating Rear Brake Rotor 370mm Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5

    Product Description: The 034Motorsport 370x22mm 2-Piece Floating Rear Brake Rotor Upgrade for B9/B9.5 Audi A4/S4, A5/S5, Q5/SQ5, & RS4/RS5 is a complete replacement brake rotor and caliper carrier kit, designed to work flawlessly with the factory...

    £1,115.15
    Was £1,239.06
  • sale
    Brisk Racing 2MOER08IR Iridium Spark Plug
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    Brisk Racing 2MOER08IR Iridium Spark Plug Set of 6 - Audi S4/S5 - RS4/RS5 B9

    Product Description: The Brisk Racing 2MOER08IR Iridium spark plugs are high-performance spark plugs that are ideal for cars with performance software upgrades and/or turbocharger upgrade kits running increased boost pressure. These iridium spark plugs...

    Was £149.97
    £134.97
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  • Performance VW Magazine - October 2025 (AWE-PVW-MAG-OCT25) Performance VW Magazine - October 2025 (AWE-PVW-MAG-OCT25)
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    Performance VW Magazine - October 2025

    Performance VW Magazine - October 2025 IssueFancy something good to read whilst you're on your break? Love VW's and the culture that comes with modifying them? Look no further! We have in stock the latest issue of Performance VW Magazine...

    £5.75
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  • sale
    034Motorsport SuperDuper S34 Carbon Fiber Intake System - B9/B9.5 Audi S4/S5 034Motorsport SuperDuper S34 Carbon Fiber Intake System - B9/B9.5 Audi S4/S5
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    034Motorsport SuperDuper S34 Carbon Fiber Intake System - B9/B9.5 Audi S4/S5

    PRODUCT DESCRIPTION: 034Motorsport's SüperDüper S34 Carbon Fiber Intake System delivers improved power, sound, and acceleration to Audi B9/B9.5 S4/S5 owners within a clean, cost-effective package.Throughout the development process, multiple...

    Was £673.36
    £606.02
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  • sale
    034Motorsport X34 Carbon Fiber X34 SuperDuper Insuction Bundle - B9/9.5 S4/S5 3.0 TFSI 034Motorsport X34 Carbon Fiber X34 SuperDuper Insuction Bundle - B9/9.5 S4/S5 3.0 TFSI
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    034Motorsport X34 Carbon Fiber X34 SuperDuper Insuction Bundle - B9/9.5 S4/S5 3.0 TFSI

    X34 SüperDüper Insuction Bundle: A bundle that mates the included SüperDüper Turbo Inlet with the X34 Carbon Fiber Airbox and Fresh Air Duct. The Stock Turbo Adapter Ring is included with the X34 SüperDüper Insuction...

    Was £1,431.30
    £1,288.17
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  • sale
    034Motorsport X34 Carbon Fiber Cold Air Intake & Air Duct - B9/9.5 S4/S5 3.0 TFSI 034Motorsport X34 Carbon Fiber Cold Air Intake & Air Duct - B9/9.5 S4/S5 3.0 TFSI
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    034Motorsport X34 Carbon Fiber Cold Air Intake & Air Duct - B9/9.5 S4/S5 3.0 TFSI

    X34 Carbon Fiber Cold Air Intake: Designed to be mated with the factory turbo inlet, and does not come with the Carbon Fiber Fresh Air Duct. 034Motorsport's X34 Carbon Fiber Intake System delivers improved power, sound, and acceleration...

    Was £1,319.26
    £1,187.33
    Add to Cart The item has been added