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Audi S4 Engine Parts & Accessories

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B8 S4/S5/Q5 3.0T Downpipes With Resonator Deletes

ES#4714616 - 012616LA01-01KT - B8 S4/S5/Q5 3.0T Downpipes With Resonator Deletes - Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. - ECS - Audi

Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4714616
Mfg#:
012616LA01-01KT
In Stock
ON SALE! SAVE 25%
$560.99

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

$420.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo B9 S4/S5 High Flow Cat

ES#4043052 - CTS-EXH-TP-0009C - CTS Turbo B9 S4/S5 High Flow Cat - CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential! - CTS - Audi

CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential!

Brand:
CTS - Corporate Logo
ES#:
4043052
Mfg#:
CTS-EXH-TP-0009C
In Stock
ON SALE! SAVE 15%
$699.99

This product was last offered at the strikethrough price on
09-29-2026

$594.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR Cat-Back Exhaust System - B9 S4/S5

ES#4901469 - CBK0012 - APR Cat-Back Exhaust System - B9 S4/S5 - Features TIG welded brushed T304 stainless steel construction and offers gains of 10 AWHP and 12 AWFT-LBS of torque - APR - Audi

Features TIG welded brushed T304 stainless steel construction and offers gains of 10 AWHP and 12 AWFT-LBS of torque Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
4901469
Mfg#:
CBK0012
In Stock
ON SALE!
$1933.95 USD
Free Shipping

ECS Tuning Billet Engine Oil Dipstick - Black Anodized

ES#3545565 - 023954ECS01-02 - ECS Tuning Billet Engine Oil Dipstick - Black Anodized - A beautiful addition and durable upgrade for your engine - ECS - Audi

A beautiful addition and durable upgrade for your engine 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3545565
Mfg#:
023954ECS01-02
In Stock
ON SALE! SAVE 25%
$104.99

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

$78.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Res-X Front Resonator Delete

ES#4845334 - 034-105-7060 - Res-X Front Resonator Delete - Unleash a throaty growl under hard acceleration! - 034Motorsport - Audi

Unleash a throaty growl under hard acceleration! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4845334
Mfg#:
034-105-7060
In Stock
$303.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RacingLine Oil Catch Can System - B9 S4/S5/SQ5

ES#4620271 - VWR131000 - RacingLine Oil Catch Can System - B9 S4/S5/SQ5 - Features a complete PCV replacement block feeding to an internally-baffled can to eliminate oil-build-up in the intercooler and inlet tract - Racingline - Audi

Features a complete PCV replacement block feeding to an internally-baffled can to eliminate oil-build-up in the intercooler and inlet tract

Brand:
Racingline - Corporate Logo
ES#:
4620271
Mfg#:
VWR131000
Ships in 1 Business Day
$1117.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Motor Mount Kit - 50 Durometer

ES#4491679 - 034-509-5036 - Street Density Line Motor Mount Kit - 50 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#:
4491679
Mfg#:
034-509-5036
In Stock
$449.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Performance Genuine Engine Oil (5w-40) - 1 Quart

ES#4871642 - GC555401QDSP - High Performance Genuine Engine Oil (5w-40) - 1 Quart - Meets Volkswagen & Audi 502.00 / 505.00 specification - Genuine Volkswagen Audi - Audi Volkswagen

Meets Volkswagen & Audi 502.00 / 505.00 specification

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4871642
Mfg#:
GC555401QDSP
In Stock
$16.07

This product was last offered at the strikethrough price on
09-08-2026

$15.29 USD
Free Shipping
on orders $49 and up

APR Upgraded Ignition Coil - Red - Set of Six

ES#4376586 - MS100208-6KT - APR Upgraded Ignition Coil - Red - Set of Six - 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

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!

To be used with the 2.0T coil pack conversion kits.

Brand:
APR - Corporate Logo
ES#:
4376586
Mfg#:
MS100208-6KT
In Stock
ON SALE! SAVE 10%
$221.70

This product was last offered at the strikethrough price on
09-28-2026

$199.53 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VW MK8 2.0T / Audi 3.0T Diverter Valve Spacer - Clear Anodized

ES#4033242 - 028495ECS01 - VW MK8 2.0T / Audi 3.0T Diverter Valve Spacer - Clear Anodized - 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! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4033242
Mfg#:
028495ECS01
In Stock
ON SALE! SAVE 25%
$89.99

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

$67.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Magnetic Oil Drain Plug - With 10 Copper Washers

ES#2804343 - 001196ECS01AKT2 - Magnetic Oil Drain Plug - With 10 Copper Washers - Capture harmful particles to prevent wear. M14x1.5 - ECS - Audi Volkswagen MINI Porsche

Capture harmful particles to prevent wear. M14x1.5 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2804343
Mfg#:
001196ECS01AKT2
In Stock
ON SALE! SAVE 25%
$30.99

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

$23.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ultimate Pressure Control Valve (PCV) Kit

ES#4487413 - 06E103547AC1KT - Ultimate Pressure Control Valve (PCV) Kit - Comprehensive kit includes everything to refresh your PCV system plus ECS coolant bleeder screw set. - Assembled By ECS - Audi
ECS Tuning recommends this product.

Comprehensive kit includes everything to refresh your PCV system plus ECS coolant bleeder screw set. 10X Entries Into Our F80 M3 Sweepstakes
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
4487413
Mfg#:
06E103547AC1KT
In Stock
ON SALE! SAVE 16%
$332.99

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

$279.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Water Pump And Thermostat Replacement Kit

ES#4690993 - 06m121115kKT - Water Pump And Thermostat Replacement Kit - Replace your Genuine thermostat and temp sensor with one kit! - Genuine Volkswagen Audi - Audi

Replace your Genuine thermostat and temp sensor with one kit! Includes Updated 6-Bolt Water Pump and Pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4690993
Mfg#:
06M121115KKT
In Stock
$791.99

This product was last offered at the strikethrough price on
08-14-2026

$762.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Ultimate Water Pump Kit

ES#5434868 - 06M121013GKT - Ultimate Water Pump Kit - Keep your cooling system running properly - Genuine Volkswagen Audi - Audi

Keep your cooling system running properly Includes Updated 6-Bolt Water Pump and Pulley

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
5434868
Mfg#:
06M121013GKT
In Stock
$1050.99

This product was last offered at the strikethrough price on
08-14-2026

$1014.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

3.0T 207mm Supercharger Crank Pulley Upgrade Kit

ES#4883431 - 053844la01KT - 3.0T 207mm Supercharger Crank Pulley Upgrade Kit - "Dual pulley" gains without the hassle! Easily increase supercharger RPM by 22% and support up to 550HP. - ECS - Audi Volkswagen Porsche

"Dual pulley" gains without the hassle! Easily increase supercharger RPM by 22% and support up to 550HP. 10X Entries Into Our F80 M3 Sweepstakes
For use with OEM (63.25mm) Supercharger Pulley.
"Stage 2" Software Required for Compatibility

Brand:
ECS - Corporate Logo
ES#:
4883431
Mfg#:
053844LA01KT
Ships in 8 Business Days
ON SALE! SAVE 20%
$419.99

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

$335.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Water Pump And Thermostat Kit

ES#4820333 - 06E121111ALKT7KT - Water Pump And Thermostat Kit - Replace your thermostat and temp sensor with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensor with one kit! 10X Entries Into Our F80 M3 Sweepstakes
Fits from the 2013 model year (facelift)

Brand:
Assembled By ECS - Corporate Logo
ES#:
4820333
Mfg#:
06E121111ALKT7KT
Ships in 1 Business Day
ON SALE! SAVE 22%
$419.99

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

$326.77 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial 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.

Let us help you find the parts that fit your Audi

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

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