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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Performance Parts & Upgrades

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Neuspeed Power Module EVO - B9 S4 Quattro

ES#4906476 - 64.02.09 - Neuspeed Power Module EVO - B9 S4 Quattro - Proprietary tune box designed specifically for the EA839 3.0L TFSI with gains of +40 Horsepower / 70 ft-lb of Torque! - Neuspeed - Audi

Proprietary tune box designed specifically for the EA839 3.0L TFSI with gains of +40 Horsepower / 70 ft-lb of Torque! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Neuspeed - Corporate Logo
ES#:
4906476
Mfg#:
64.02.09
Ships in 2 Business Days
ON SALE!
$649.00

This product was last offered at the strikethrough price on
07-02-2026

$614.86 USD
Free Shipping

APR TCU Upgrade - 8-Speed Tiptronic (AL552 8HP55 ZF8)

ES#4715771 - TCU-AL552 - APR TCU Upgrade - 8-Speed Tiptronic (AL552 8HP55 ZF8) - Optimize the driving experience with performance tuning software for your vehicle's Transmission Control Unit (TCU). - APR - Audi

Optimize the driving experience with performance tuning software for your vehicle's Transmission Control Unit (TCU). Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade requires the vehicle to be dropped off at ECS Tuning's facility in Ohio and picked up the ne

Brand:
APR - Corporate Logo
ES#:
4715771
Mfg#:
TCU-AL552
In Stock
$599.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Revo Carbon Series Intake Kit

ES#4499836 - RA841M200200 - Revo Carbon Series Intake Kit - The Carbon Series has performance woven into the core of every product. - REVO - Audi

The Carbon Series has performance woven into the core of every product. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with CWGD engine code.

Brand:
REVO - Corporate Logo
ES#:
4499836
Mfg#:
RA841M200200
In Stock
$595.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Special Active Front And Rear Struts

ES#4698700 - 82451406KT - Special Active Front And Rear Struts - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vehicle will lose Adaptive Dampening Control

Brand:
Koni - Corporate Logo
ES#:
4698700
Mfg#:
82451406KT
Back Ordered
ON SALE! SAVE 20%
$734.99

This product was last offered at the strikethrough price on
02-06-2026

$586.34 USD
Free Shipping
on orders $49 and up

Replacement Front Rotor Ring Set For ES4429973

ES#4699061 - 034-304-1008 - Replacement Front Rotor Ring Set For ES4429973 - 034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit replacement rings - 034Motorsport - Audi

034Motorsport 350mmx34mm 2-Piece Floating Front Brake Rotor Upgrade Kit replacement rings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4699061
Mfg#:
034-304-1008
In Stock
ON SALE! SAVE 10%
$650.00

This product was last offered at the strikethrough price on
06-28-2026

$585.00 USD
Free Shipping

Replacement Rear Rotor Rings (330x22) - B9/B9.5 Audi S4/S5

ES#4880725 - 034-304-2008 - Replacement Rear Rotor Rings (330x22) - B9/B9.5 Audi S4/S5 - Replacement Rotor Ring and Hardware Set for the 2-Piece Floating Brake Rotor Upgrade Kit - 034Motorsport - Audi

Replacement Rotor Ring and Hardware Set for the 2-Piece Floating Brake Rotor Upgrade Kit affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4880725
Mfg#:
034-304-2008
In Stock
ON SALE! SAVE 10%
$650.00

This product was last offered at the strikethrough price on
06-28-2026

$585.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Dynamic+ StreetSport Front & Rear Brake Pad Set

ES#5445005 - 034-302-2627KT - 034Motorsport Dynamic+ StreetSport Front & Rear Brake Pad Set - Semi-metallic pads that offer low dust and noise for comfortable everyday use, while delivering high friction, superior modulation, and exceptional stopping power! - 034Motorsport - Audi

Semi-metallic pads that offer low dust and noise for comfortable everyday use, while delivering high friction, superior modulation, and exceptional stopping power! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
5445005
Mfg#:
034-302-2627KT
In Stock
ON SALE! SAVE 10%
$632.00

This product was last offered at the strikethrough price on
06-28-2026

$568.80 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EMD Wheel Spacers - 5mm (Pair)

ES#4430359 - EMD-SPACER-5-665 - EMD Wheel Spacers - 5mm (Pair) - Exclusively built for your 66.5mm centerbore VW/Audi - Emmanuele Design - Audi

Exclusively built for your 66.5mm centerbore VW/Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4430359
Mfg#:
EMD-SPACER-5-665
Ships in 1 Business Day
$40.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 20mm Wheel Spacers - Pair

ES#4043208 - EMDSPACER20665 - EMD Auto 20mm Wheel Spacers - Pair - Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore - Emmanuele Design - Audi

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Emmanuele Design - Corporate Logo
ES#:
4043208
Mfg#:
EMDSPACER20665
Ships in 3 Business Days
$70.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar (32mm)

If understeer is an issue, increasing or adding a sway bar in the front can help. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Megan Racing - Corporate Logo
ES#:
4833874
Mfg#:
MRS-AU-2090
Ships in 4 Business Days
$279.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EMD Auto 12.5mm Wheel Spacers - Pair (With Bolts)

Manufactured out of high quality 6061-T6 aluminum, and black anodized for corrosion resistance - 5x112, 66.5 Center Bore affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4430394
Mfg#:
SPACER125665CB
Ships in 9 Business Days
$110.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Exact-Fit Stainless Steel Brake Lines

ES#3410499 - 019318ECS02 - Rear Exact-Fit Stainless Steel Brake Lines - Rear set of DOT-compliant lines for an improved pedal feel - ECS - Audi

Rear set of DOT-compliant lines for an improved pedal feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3410499
Mfg#:
019318ECS02
Ships in 4 Business Days
$109.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

19" Wheel Spacer Flush Fit Kit - Black Bolts

ES#4476079 - B9FLUSHKT - 19" Wheel Spacer Flush Fit Kit - Black Bolts - Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels - Assembled By ECS - Audi

Includes H&R spacers & Black bolts to obtain a flush look on your OE 19" wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4476079
Mfg#:
B9FLUSHKT
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$299.99

This product was last offered at the strikethrough price on
05-02-2026

$269.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RaceChip XLR Throttle Controller With App Control

ES#4708646 - 999871 - RaceChip XLR Throttle Controller With App Control - Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control. - Race Chip - Audi

Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Race Chip - Corporate Logo
ES#:
4708646
Mfg#:
999871
Ships in 3 Business Days
ON SALE! SAVE 10%
$299.00

This product was last offered at the strikethrough price on
07-01-2026

$269.10 USD
Free Shipping
on orders $49 and up

Trunk Spoiler - Gloss Black

ES#3709285 - ZAW071600MDSP - Trunk Spoiler - Gloss Black - Ideal for those looking to add a competition-inspired touch to their Audi. - Genuine Volkswagen Audi - Audi

Ideal for those looking to add a competition-inspired touch to their Audi. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3709285
Mfg#:
ZAW071600MDSP
Ships in 8 Business Days
4% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$540.00

This product was last offered at the strikethrough price on
07-06-2026

$517.99 USD
This product is lifetime replacement eligible Lifetime Replacement

SuperDuper Turbo Inlet Pipe Rebuild Kit - B9/B9.5 Audi S4/S5/SQ5 3.0T

ES#4905843 - 034-108-R001 - SuperDuper Turbo Inlet Pipe Rebuild Kit - B9/B9.5 Audi S4/S5/SQ5 3.0T - Includes new replacement O-rings and Hardware for those lost or damaged during installation. - 034Motorsport - Audi

Includes new replacement O-rings and Hardware for those lost or damaged during installation. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4905843
Mfg#:
034-108-R001
In Stock
ON SALE! SAVE 10%
$7.00

This product was last offered at the strikethrough price on
06-28-2026

$6.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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