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Audi B9 A4 Quattro 2.0T

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Audi B9 A4 Quattro 2.0T Engine Parts & Accessories

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DV+ Performance Diverter Valve T9351

ES#2864616 - gfbt9351 - DV+ Performance Diverter Valve T9351 - Direct-fit performance solution for the OE diverter valve - Go Fast Bits - Audi Volkswagen Porsche

Direct-fit performance solution for the OE diverter valve CARB certified for sale in all 50 states

Brand:
Go Fast Bits - Corporate Logo
ES#:
2864616
Mfg#:
GFBT9351
EO#:
D-844
In Stock
10% off MSRP

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

$171.00

This product was last offered at the strikethrough price on
08-24-2026

$153.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Thermostat/Water Pump Kit - With Belt

ES#5425238 - 06L121111J - Thermostat/Water Pump Kit - With Belt - Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and belt. - Bremmen Parts - Audi Volkswagen Porsche

Advanced design with fewer moving parts and lower weight - without sacrificing cooling performance or warm-up temperature curve. Includes thermostat, water pump, union, and belt. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5425238
Mfg#:
06L121111J
In Stock
$270.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 4210 Synthetic Engine Oil (0w-30) - 5 Liter

ES#4339884 - 22158 - Top Tec 4210 Synthetic Engine Oil (0w-30) - 5 Liter - Fully synthetic, low-viscosity and low-SAPS motor oil developed for VAG 504.00/507.00 and BMW Longlife-04 specifications - Liqui-Moly - Audi BMW Volkswagen Porsche

Fully synthetic, low-viscosity and low-SAPS motor oil developed for VAG 504.00/507.00 and BMW Longlife-04 specifications 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
4339884
Mfg#:
22158
In Stock
37% off MSRP

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

$100.99

This product was last offered at the strikethrough price on
08-24-2026

$63.59 USD
Free Shipping
on orders $49 and up

APR Upgraded Ignition Coils - Blue - Set Of Four

ES#4164383 - MS100204-4KT - APR Upgraded Ignition Coils - Blue - Set Of Four - Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! - APR - Audi Volkswagen

Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! Call In Or Chat For Best Price!
CARB certified for sale in all 50 states

Brand:
APR - Corporate Logo
ES#:
4164383
Mfg#:
MS100204-4KT
EO#:
D-783-5
In Stock
$211.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Upgraded Heavy Duty Thermostat / Water Pump Belt Kit

ES#4818763 - 06L121111P - Upgraded Heavy Duty Thermostat / Water Pump Belt Kit - Includes thermostat, water pump, belt, union, and O-rings. - Hamburg Tech - Audi Volkswagen Porsche

Includes thermostat, water pump, belt, union, and O-rings. We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4818763
Mfg#:
06L121111P
In Stock
$267.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit

ES#4033282 - ms100192kt3KT - Performance Ignition Service Kit - Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! - Assembled By ECS - Audi Volkswagen

Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! 10X Entries Into Our F80 M3 Sweepstakes
CARB certified for sale in all 50 states

Brand:
Assembled By ECS - Corporate Logo
ES#:
4033282
Mfg#:
MS100192KT3KT
EO#:
D-783-5
In Stock
$264.25 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4 2.0T Non Valved Exhaust System - Cat Back

ES#4703829 - 049103LA01 - Audi B9 A4 2.0T Non Valved Exhaust System - Cat Back - Experience your driving passion with our ECS Exhaust System! - ECS - Audi

Experience your driving passion with our ECS Exhaust System! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles up through the 2018 model year only (Pre-Facelift)

Brand:
ECS - Corporate Logo
ES#:
4703829
Mfg#:
049103LA01
In Stock
ON SALE!
Starting at $967.63 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RS Ignition Service Kit

ES#3691929 - 06h905110lkt3 - RS Ignition Service Kit - Add 8V RS3/B9 S4 spark with these red top coil packs and RS7 spark plugs for the ultimate ignition service kit for your 1.8T/2.0T Gen3 engine! - Assembled By ECS - Audi Volkswagen

Add 8V RS3/B9 S4 spark with these red top coil packs and RS7 spark plugs for the ultimate ignition service kit for your 1.8T/2.0T Gen3 engine! 10X Entries Into Our F80 M3 Sweepstakes
1 heat range colder than OE plug

Brand:
Assembled By ECS - Corporate Logo
ES#:
3691929
Mfg#:
06H905110LKT3
In Stock
ON SALE!
$242.20

This product was last offered at the strikethrough price on
04-27-2026

$235.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Iridium Pro Spark Plug - Set Of Four

ES#4616188 - z1003100-4KT - APR Iridium Pro Spark Plug - Set Of Four - An excellent upgrade for tuned engines. 14X26.5X16mm - Heat Range 9 - APR - Audi Volkswagen Porsche

An excellent upgrade for tuned engines. 14X26.5X16mm - Heat Range 9 Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4616188
Mfg#:
Z1003100-4KT
Back Ordered
Auto Notify
$127.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dynamic+ End User Flashing Kit R4 (Flashing Device Only - Tuning Not Included)

ES#4684889 - 034-103-3306 - Dynamic+ End User Flashing Kit R4 (Flashing Device Only - Tuning Not Included) - End User Flashing allows Dynamic+ Performance Software customers to receive and install software updates and revisions, flash back to stock, or upgrade to the next stage of performance software for their vehicle. - 034Motorsport - Audi Volkswagen

End User Flashing allows Dynamic+ Performance Software customers to receive and install software updates and revisions, flash back to stock, or upgrade to the next stage of performance software for their vehicle. 2X Entries Into Our F80 M3 Sweepstakes
The 034SPI Mobile App is only available on vehicles with Dynamic+ Tuning installed. You must purchase Dynamic+ Tuning for your Audi or Volkswagen to access the Dynamic+ Flashing Suite and 034SPI Mobile Application.

Brand:
034Motorsport - Corporate Logo
ES#:
4684889
Mfg#:
034-103-3306
EO#:
D-850
In Stock
ON SALE! SAVE 14%
$180.00

This product was last offered at the strikethrough price on
08-17-2026

$153.90 USD
Free Shipping

Street Density Line Motor Mount Kit - 60 Durometer

ES#4619953 - 034-509-5041 - Street Density Line Motor Mount Kit - 60 Durometer - Void-free and fluid-free, eliminating the slop associated with the factory mounts - 034Motorsport - Audi

Void-free and fluid-free, eliminating the slop associated with the factory mounts 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4619953
Mfg#:
034-509-5041
In Stock
ON SALE! SAVE 15%
$480.00

This product was last offered at the strikethrough price on
08-17-2026

$410.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4/A5 Engine Street Shield Aluminum Skid Plate

ES#3411957 - 019207ecs01KT - Audi B9 A4/S4/A5 Engine Street Shield Aluminum Skid Plate - Protect your vehicle's plastic oil pan with this 4mm thick aluminum skid plate - ECS - Audi

Protect your vehicle's plastic oil pan with this 4mm thick aluminum skid plate 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3411957
Mfg#:
019207ECS01KT
In Stock
$391.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly MolyGen - Oil Service Kit (5w-40) - With Magnetic Drain Plug

ES#4006931 - 06L115562KT11 - Liqui Moly MolyGen - Oil Service Kit (5w-40) - With Magnetic Drain Plug - Includes Hengst oil filter, Liqui Moly 5w-40 oil with MolyGen technology and ECS Magnetic Drain Plug - Assembled By ECS - Audi Volkswagen

Includes Hengst oil filter, Liqui Moly 5w-40 oil with MolyGen technology and ECS Magnetic Drain Plug 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4006931
Mfg#:
06L115562KT11
In Stock
ON SALE!
$117.46

This product was last offered at the strikethrough price on
08-19-2026

$114.03 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Genuine Oil Service Kit (5w-40)

ES#2776767 - 06l115562KT - Genuine Oil Service Kit (5w-40) - Includes 5w-40 Genuine oil, filter and drain plug - Genuine Volkswagen Audi - Audi Volkswagen

Includes 5w-40 Genuine oil, filter and drain plug

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2776767
Mfg#:
06L115562KT
In Stock
$115.99

This product was last offered at the strikethrough price on
07-17-2026

$109.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Turbocharger

ES#4351788 - 06L145874E - Turbocharger - Complete turbocharger assembly to replace your failed unit - Restore boost and get going! - IHI Turbo - Audi

Complete turbocharger assembly to replace your failed unit - Restore boost and get going!

Brand:
IHI Turbo - Corporate Logo
ES#:
4351788
Mfg#:
06L145874E
In Stock
$1359.99 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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