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Audi A4 Performance Engine Parts

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340lph High Flow In-Tank Fuel Pump (e85 Compatible)

ES#3691421 - 50-1200 - 340lph High Flow In-Tank Fuel Pump (e85 Compatible) - AEM?s 340LPH E85-Compatible High Flow In-Tank Fuel Pumps feature robust internal construction that is designed to withstand the low lubricity characteristics of ethanol and methanol fuels - AEM Electronics - Audi Volkswagen

AEM?s 340LPH E85-Compatible High Flow In-Tank Fuel Pumps feature robust internal construction that is designed to withstand the low lubricity characteristics of ethanol and methanol fuels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This is a general-use high flow fuel pump, not a direct plug-and-play swap in most application

Brand:
AEM Electronics - Corporate Logo
ES#:
3691421
Mfg#:
50-1200
In Stock
11% off MSRP

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

$175.95

This product was last offered at the strikethrough price on
07-08-2026

$155.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B8 A4 / A5 2.0T Performance Aluminum Radiator

ES#4566538 - 012463LA01 - B8 A4 / A5 2.0T Performance Aluminum Radiator - Direct-fit upgrade! Featuring an 80% increase in core thickness and durable, all-aluminum construction. - ECS - Audi

Direct-fit upgrade! Featuring an 80% increase in core thickness and durable, all-aluminum construction. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!
For Vehicles Equipped with an Automatic Transmission

Brand:
ECS - Corporate Logo
ES#:
4566538
Mfg#:
012463LA01
In Stock
ON SALE! SAVE 20%
$428.99

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

$343.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Harmonic Damper Crankshaft Pulley

ES#2966553 - 551231 - Harmonic Damper Crankshaft Pulley - Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability - Fluidampr - Audi Volkswagen

Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Fluidampr - Corporate Logo
ES#:
2966553
Mfg#:
551231
In Stock
$517.60 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

550cc Fuel Injectors - Set Of Four

ES#1899400 - injb550 - 550cc Fuel Injectors - Set Of Four - Compatible with BT software applications. Includes injector plug adapters - Bosch - Audi Volkswagen MINI

Compatible with BT software applications. Includes injector plug adapters affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
1899400
Mfg#:
INJB550
In Stock
$437.99

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

$363.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Polymer Air Intake System - B9/B9.5 A4 & A5 2.0T

ES#4674685 - IEINCK6 - IE Polymer Air Intake System - B9/B9.5 A4 & A5 2.0T - Power gains of up to 10-20HP on tuned engines! - Integrated Engineering - Audi

Power gains of up to 10-20HP on tuned engines! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4674685
Mfg#:
IEINCK6
In Stock
$522.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Kompact EM Series Plumb Back Diverter Valve

ES#3659075 - TS-0223-1263 - Kompact EM Series Plumb Back Diverter Valve - A more audible valve that will not leak under elevated boost pressures, while still providing with rapid response and OEM-like functionality - TurboSmart - Audi Volkswagen

A more audible valve that will not leak under elevated boost pressures, while still providing with rapid response and OEM-like functionality affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CARB certified for sale in all 50 states

Brand:
TurboSmart - Corporate Logo
ES#:
3659075
Mfg#:
TS-0223-1263
EO#:
D-848
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.

$309.99

This product was last offered at the strikethrough price on
07-08-2026

$278.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

VW/Audi Atmospheric Diverter Valve Spacer - Clear

ES#3551284 - 021828ECS01-02 - VW/Audi Atmospheric Diverter Valve Spacer - Clear - Let your turbo blow off some air for an exhilarating driving experience! - ECS - Audi Volkswagen

Let your turbo blow off some air for an exhilarating driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3551284
Mfg#:
021828ECS01-02
In Stock
ON SALE! SAVE 46%
$91.99

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

$49.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/A5 2.0T Center Resonator Delete

ES#3576157 - 023492ecs01KT - Audi B9 A4/A5 2.0T Center Resonator Delete - Add an aggressive exhaust sound with this Resonator Delete Pipe Kit! Deletes rear-most resonator. - ECS - Audi

Add an aggressive exhaust sound with this Resonator Delete Pipe Kit! Deletes rear-most resonator. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3576157
Mfg#:
023492ECS01KT
Ships in 2 Business Days
ON SALE! SAVE 25%
$354.99

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

$266.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Luft-Technik B9 A4 Intercooler And Charge Pipe Kit

ES#3557444 - 019219ecs01aKT2 - Luft-Technik B9 A4 Intercooler And Charge Pipe Kit - Full kit to upgrade your charge pipes and FMIC - ECS - Audi

Full kit to upgrade your charge pipes and FMIC affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For vehicles with production date up through 2020

Brand:
ECS - Corporate Logo
ES#:
3557444
Mfg#:
019219ECS01AKT2
Ships on Sep 23, 2026
Auto Notify
ON SALE! SAVE 15%
$1060.99

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

$901.84 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal ECS Tuning Baffled Oil Catch Can Kit (8oz)

ES#4040043 - 003779ecs05-01KT - Universal ECS Tuning Baffled Oil Catch Can Kit (8oz) - Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. - ECS - Audi Volkswagen

Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4040043
Mfg#:
003779ECS05-01KT
In Stock
ON SALE! SAVE 15%
$417.99

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

$355.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Track Density Line Motor Mounts Kit

ES#2918007 - 034-509-0048KT - Track Density Line Motor Mounts Kit - 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2918007
Mfg#:
034-509-0048KT
In Stock
ON SALE! SAVE 10%
$546.00

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

$491.40 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Muffler Delete

ES#3022523 - CTSHW0199 - Turbo Muffler Delete - Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete - CTS - Audi Volkswagen

Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
3022523
Mfg#:
CTSHW0199
Ships in 9 Business Days
Auto Notify
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Muffler Delete

ES#2792807 - MS100097 - Turbo Muffler Delete - Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete - APR - Audi Volkswagen

Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete 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!

Brand:
APR - Corporate Logo
ES#:
2792807
Mfg#:
MS100097
In Stock
11% off MSRP

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

$130.95

This product was last offered at the strikethrough price on
07-08-2026

$115.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Blow-Off Valve Kit - *Limited Edition* Red*

ES#4001239 - FMFSITATR - Blow-Off Valve Kit - *Limited Edition* Red* - Stop boost leaking from your diverter valve once and for all! *Limited edition red finish* - Forge - Audi Volkswagen

Stop boost leaking from your diverter valve once and for all! *Limited edition red finish* affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Limited Editions ONLY at ECS Tuning : Limited Stock so Act Fast
For vehicles with plastic intake manifolds

Brand:
Forge - Corporate Logo
ES#:
4001239
Mfg#:
FMFSITATR
In Stock
ON SALE! SAVE 10%
$295.00

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

$265.50 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Blow-Off Valve Kit - *Limited Edition* Red*

ES#3191205 - FMDVMK7A-R - Blow-Off Valve Kit - *Limited Edition* Red* - LIMITED EDITION version of Forge's very popular BOV - Forge - Audi Volkswagen Porsche

LIMITED EDITION version of Forge's very popular BOV affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Limited Editions ONLY at ECS Tuning : Limited Stock so Act Fast

Brand:
Forge - Corporate Logo
ES#:
3191205
Mfg#:
FMDVMK7A-R
Ships on Jul 28, 2026
Auto Notify
ON SALE! SAVE 10%
$299.99

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

$269.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMS Pedal Tuner

ES#3998870 - BPT-VA1 - BMS Pedal Tuner - Don't let weak and unresponsive factory gas pedal mapping ruin your driving experience! - Burger Motorsports - Audi Volkswagen

Don't let weak and unresponsive factory gas pedal mapping ruin your driving experience! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
3998870
Mfg#:
BPT-VA1
In Stock
$199.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

Let us help you find the parts that fit your Audi

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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