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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Engine Parts & Accessories

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Audi B9 S4/S5 Eventuri Intake System - Black Carbon

ES#3604844 - EVE-B9S5-CF-INT - Audi B9 S4/S5 Eventuri Intake System - Black Carbon - Developed to give less restrictive airflow to the turbo while maintaining low inlet temperatures - Optimum performance, precise fitment, and bespoke style! - Eventuri - Audi

Developed to give less restrictive airflow to the turbo while maintaining low inlet temperatures - Optimum performance, precise fitment, and bespoke style! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Eventuri - Corporate Logo
ES#:
3604844
Mfg#:
EVE-B9S5-CF-INT
Ships in 5 Business Days
$1550.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

ES#274849 - 037906283C - Solenoid Valve - Priced Each - Common cure for DTC P0441 - Genuine Volkswagen Audi - Audi Volkswagen

Common cure for DTC P0441 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicle with productions dates up to 07/30/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
274849
Mfg#:
037906283C
In Stock
16% off MSRP

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

$216.65

This product was last offered at the strikethrough price on
02-26-2026

$181.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Fuel Cap Cover - Clear Anodized

ES#3677062 - 022506ECS0101 - Billet Fuel Cap Cover - Clear Anodized - Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! - ECS - Audi Volkswagen Porsche

Upgrade your gas cap to our gorgeous CNC-machined aluminum cover. Easily installs over your existing cap! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3677062
Mfg#:
022506ECS0101
In Stock
ON SALE!
$137.99

This product was last offered at the strikethrough price on
06-13-2026

$133.85 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Forge Electronic Atmospheric Dump Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T

ES#5375303 - FMEDV106A - Forge Electronic Atmospheric Dump Valve (E-DV) - Audi B9 A4 2.0T / S4 3.0T / VW MK8 2.0T - Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! - Forge - Audi Volkswagen

Next generation electronically actuated diverter valve engineered for modern turbo engines with a true plug-and-play design! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
5375303
Mfg#:
FMEDV106A
Ships on Jul 23, 2026
Auto Notify
ON SALE! SAVE 10%
$379.99

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

$341.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbocharger - OE

ES#4429103 - 06M145689AC - Turbocharger - OE - Complete turbocharger assembly to replace your failed unit - Restore boost and get going! - Genuine Volkswagen Audi - Audi

Complete turbocharger assembly to replace your failed unit - Restore boost and get going! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4429103
Mfg#:
06M145689AC
Ships in 1 day
5% off MSRP

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

$3228.99

This product was last offered at the strikethrough price on
02-26-2026

$3063.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Self-Locking Nut - Priced Each

ES#471101 - N90894601 - Self-Locking Nut - Priced Each - Install new hardware with your new parts. M8 - Genuine Volkswagen Audi - Audi Volkswagen

Install new hardware with your new parts. M8 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Used to secure the turbocharger to the cylinder head - qty 4 required - outer

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
471101
Mfg#:
N90894601
In Stock
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2.5" High-Flow Downpipe

ES#3420821 - SSXAU673 - 2.5" High-Flow Downpipe - Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
3420821
Mfg#:
SSXAU673
Ships in 3 Business Days
ON SALE! SAVE 10%
$3374.99

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

$3037.30 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4/S5 Charge Pipe Kit

ES#4159029 - CTS-IT-292 - B9 S4/S5 Charge Pipe Kit - 2.5" diameter piping to increase your throttle response and decrease turbo lag - CTS - Audi

2.5" diameter piping to increase your throttle response and decrease turbo lag affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4159029
Mfg#:
CTS-IT-292
Ships in 7 Business Days
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oil Cap Gasket

ES#3181876 - 06M103727A - Oil Cap Gasket - Addresses a seeping filler cap - Genuine Volkswagen Audi - Audi

Addresses a seeping filler cap affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3181876
Mfg#:
06M103727A
In Stock
4% off MSRP

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

$27.99

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

$26.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Turbocharger Installation Kit

ES#4629483 - 06m133026aktKT - Ultimate Turbocharger Installation Kit - All hardware required for a successful install utilizing genuine components. - Genuine Volkswagen Audi - Audi

All hardware required for a successful install utilizing genuine components. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4629483
Mfg#:
06M133026AKTKT
Ships in 1-2 days
$243.99

This product was last offered at the strikethrough price on
02-18-2026

$242.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Synthoil Premium Engine Oil (5w-40) - 1 Liter

ES#258724 - 2040 - Synthoil Premium Engine Oil (5w-40) - 1 Liter - A fully synthetic oil specifically designed around the unique needs and long drain intervals of European engines - Liqui-Moly - Audi BMW Volkswagen

A fully synthetic oil specifically designed around the unique needs and long drain intervals of European engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
258724
Mfg#:
2040
In Stock
36% off MSRP

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

$17.95

This product was last offered at the strikethrough price on
04-20-2026

$11.45 USD
Free Shipping
on orders $49 and up

Water Pump - 4 Bolt

ES#4876087 - 06M121013D - Water Pump - 4 Bolt - New water pump. Does not include pulley - Graf - Audi Porsche

New water pump. Does not include pulley affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Graf - Corporate Logo
ES#:
4876087
Mfg#:
06M121013D
In Stock at Vendor
$319.99

This product was last offered at the strikethrough price on
04-04-2026

$308.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Injector- Priced Each

ES#4416610 - 06M906036AP - Fuel Injector- Priced Each - Replace your old and failing injectors - Genuine Volkswagen Audi - Audi

Replace your old and failing injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with production date from 06/15/2020

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4416610
Mfg#:
06M906036AP
In Stock
ON SALE!
$213.00

This product was last offered at the strikethrough price on
06-15-2026

$197.03 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Atmospheric Dump Valve - Polished Silver

ES#4726975 - FMDV13A-C - Atmospheric Dump Valve - Polished Silver - Prevent boost leaks with full billet construction - Forge - Audi

Prevent boost leaks with full billet construction affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
4726975
Mfg#:
FMDV13A-C
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$278.99

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

$250.38 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Unitronic Performance Software - Stage 1+ - With UniCONNECT+ Cable

Gain up to 100 horsepower and 112 lb-ft of torque on 93 Octane affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Buy Unitronic Software 6/22/26 - 7/10/26 for a chance to win your Software & UniCONNECT+ Cable for FREE!
This tune can be performed at home with the included UniCONNECT+ cable. Only available for purchase in th

Brand:
Unitronic - Corporate Logo
ES#:
4375901
Mfg#:
30T-EA839-1+-UC
In Stock
ON SALE! SAVE 14%
$1064.99

This product was last offered at the strikethrough price on
06-22-2026

$914.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount

ES#3561738 - 8W0399156BH - Transmission Mount - Includes bracket and rubber mounting - Genuine Volkswagen Audi - Audi

Includes bracket and rubber mounting affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3561738
Mfg#:
8W0399156BH
Ships in 2 Business Days
10% off MSRP

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

$148.33

This product was last offered at the strikethrough price on
02-23-2026

$133.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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Manufacturer names and/or part numbers are used only for identification purposes.

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