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Audi A4 Performance Engine Parts

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AEM Water/Methanol Injection System

ES#4500516 - 30-3326 - AEM Water/Methanol Injection System - High-Flow Low-Current WMI Solenoid - 200PSI 1/8in-27NPT In/Out - AEM Electronics - Audi BMW Volkswagen MINI Porsche

High-Flow Low-Current WMI Solenoid - 200PSI 1/8in-27NPT In/Out affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AEM Electronics - Corporate Logo
ES#:
4500516
Mfg#:
30-3326
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.

$149.99

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

$132.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

265lph Fuel Performance Fuel Pump

ES#3082307 - 96541025 - 265lph Fuel Performance Fuel Pump - Get the flow you need - 265lph - DeatschWerks - Audi Volkswagen MINI

Get the flow you need - 265lph affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This is Universal and Not a direct replacement for the Genuine Pump!

Brand:
DeatschWerks - Corporate Logo
ES#:
3082307
Mfg#:
96541025
In Stock
$249.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3" High Flow Catalytic Converter

ES#3449953 - CTSEXHTP0006-CAT - 3" High Flow Catalytic Converter - Designed to seamlessly fit in place of factory catalytic converter - CTS - Audi

Designed to seamlessly fit in place of factory catalytic converter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles up through 2020

Brand:
CTS - Corporate Logo
ES#:
3449953
Mfg#:
CTSEXHTP0006-CAT
Back Ordered
$279.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 A4/S4 Carbon Fiber Inlet Scoop

ES#3537354 - 024641ecs02KT - B9 A4/S4 Carbon Fiber Inlet Scoop - Channel air to your intake with performance syle! - ECS - Audi

Channel air to your intake with performance syle! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3537354
Mfg#:
024641ECS02KT
Ships on Dec 1, 2026
ON SALE! SAVE 10%
$271.61

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

$244.45 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motorsport TrackSport Engine Mount Pair

ES#2993008 - 034-509-0047 - Motorsport TrackSport Engine Mount Pair - Density line rubber damping to maximize strength and durability - 034Motorsport - Audi

Density line rubber damping to maximize strength and durability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
2993008
Mfg#:
034-509-0047
Back Ordered
ON SALE! SAVE 10%
$611.00

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

$549.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Pressure Fuel Pump Tool

ES#4505757 - 034-106-Z056 - High Pressure Fuel Pump Tool - Designed to make the disassembly and reassembly of the high pressure fuel pump a breeze! - 034Motorsport - Audi

Designed to make the disassembly and reassembly of the high pressure fuel pump a breeze! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
4505757
Mfg#:
034-106-Z056
In Stock
ON SALE! SAVE 10%
$28.00

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

$25.20 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Forged H-Beam Connecting Rods

ES#2794314 - IERHVC1 - Forged H-Beam Connecting Rods - Set of 4 - Integrated Engineering - Audi Volkswagen

Set of 4 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

For use with factory pistons only

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794314
Mfg#:
IERHVC1
In Stock
$542.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Forged H-Beam Connecting Rods

ES#2794491 - IERHVA2 - Forged H-Beam Connecting Rods - Set of 4 - Integrated Engineering - Audi Volkswagen

Set of 4 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Drop-In rods for use with OEM pistons, or pistons with 19mm wrist pins

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794491
Mfg#:
IERHVA2
Back Ordered
$542.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport & Sound Pack Cat-Back Exhaust System

ES#3508263 - 764920 - Sport & Sound Pack Cat-Back Exhaust System - Stainless steel non-resonated cat-back exhaust system with dual round, polished tips - Supersprint - Audi

Stainless steel non-resonated cat-back exhaust system with dual round, polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supersprint - Corporate Logo
ES#:
3508263
Mfg#:
764920
Ships in 3 Business Days
$2170.99 USD
Free Shipping

Cat-Back Exhaust System - Resonated

2.76" stainless steel with your choice of tip style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
4159433
Mfg#:
B9A4RESONATED
Ships in 3 Business Days
ON SALE!
Starting at $2170.60 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Universal Oil Cooler - 19 Row

ES#2764082 - MM0CUL - Universal Oil Cooler - 19 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764082
Mfg#:
MM0CUL
In Stock at Vendor
$536.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Atmospheric Blow Off Valve Spacer - Polished

ES#1832412 - FMDV14T - Atmospheric Blow Off Valve Spacer - Polished - Direct bolt on without worry of a check-engine light - Forge - Audi Volkswagen

Direct bolt on without worry of a check-engine light affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with plastic intake manifolds

Brand:
Forge - Corporate Logo
ES#:
1832412
Mfg#:
FMDV14T
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$130.99

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

$117.45 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE 2.0T FSI/TSI Port Injection Fuel Rail

ES#3677839 - IEIMVC17 - IE 2.0T FSI/TSI Port Injection Fuel Rail - Get past the direct injection "fuel limit ceiling" - Integrated Engineering - Audi Volkswagen

Get past the direct injection "fuel limit ceiling" affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Requires IE Manifold

Brand:
Integrated Engineering - Corporate Logo
ES#:
3677839
Mfg#:
IEIMVC17
In Stock
$208.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827376 - SSXAU249 - Cat-Back Exhaust System - Resonated - 2.76" stainless steel with quad GT100 polished tips - Milltek Sport - Audi

2.76" stainless steel with quad GT100 polished tips affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Milltek Sport - Corporate Logo
ES#:
2827376
Mfg#:
SSXAU249
Ships in 3 Business Days
ON SALE! SAVE 10%
$2310.99

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

$2079.12 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Spring Tuning Kit

ES#2081087 - fmtvtun - Valve Spring Tuning Kit - Fine tune your Blow Off or Diverter Valve to the exact needs of your engine with this complete tuning kit. - Forge - Audi Volkswagen MINI

Fine tune your Blow Off or Diverter Valve to the exact needs of your engine with this complete tuning kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
2081087
Mfg#:
FMTVTUN
In Stock
ON SALE! SAVE 12%
$34.99

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

$30.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System

ES#3175521 - 252561TM - Cat-Back Exhaust System - 2.5" T-304 Stainless Steel exhaust system with dual tip Magnaflow muffler - Techtonics Tuning - Audi

2.5" T-304 Stainless Steel exhaust system with dual tip Magnaflow muffler affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175521
Mfg#:
252561TM
Ships in 8 Business Days
$687.99 USD
Free Shipping
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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