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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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Spark Plugs - Set Of Six

ES#3691957 - 06m905606fKT - Spark Plugs - Set Of Six - Keep your engine running strong - Genuine Volkswagen Audi - Audi

Keep your engine running strong

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3691957
Mfg#:
06M905606FKT
In Stock
$115.99 USD
Free Shipping
on orders $49 and up
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! SAVE 20%
$2049.99

This product was last offered at the strikethrough price on
04-22-2026

$1645.16 USD
Free Shipping

Performance High-Flow Air Intake System - 6" Velocity Stack

ES#4045629 - CTS-IT-290R - Performance High-Flow Air Intake System - 6" Velocity Stack - Designed to work in conjunction with the OEM air scoop to seamlessly force cold air into the system - Flowed through a massive 6" velocity stack filter! - CTS - Audi

Designed to work in conjunction with the OEM air scoop to seamlessly force cold air into the system - Flowed through a massive 6" velocity stack filter!

Brand:
CTS - Corporate Logo
ES#:
4045629
Mfg#:
CTS-IT-290R
Ships in 7 Business Days
ON SALE! SAVE 15%
$299.99

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

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

FDS Front-Mount Intercooler Kit - Silver

ES#3470702 - IETPCK1 - FDS Front-Mount Intercooler Kit - Silver - Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods! - Integrated Engineering - Audi

Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods!

Brand:
Integrated Engineering - Corporate Logo
ES#:
3470702
Mfg#:
IETPCK1
In Stock
$1034.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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

IE Cat-Back Exhaust System - B9/B9.5 S4

ES#4709360 - IEEXCK5 - IE Cat-Back Exhaust System - B9/B9.5 S4 - Delivers a truly aggressive exhaust note without any annoying drone or rasp - Integrated Engineering - Audi

Delivers a truly aggressive exhaust note without any annoying drone or rasp

Brand:
Integrated Engineering - Corporate Logo
ES#:
4709360
Mfg#:
IEEXCK5
In Stock
$1687.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Charge Pipe Kit

ES#4685216 - IETPCK6 - Performance Aluminum Charge Pipe Kit - Eliminate factory bottlenecks and weak plastic materials for increased flow and strength. - Integrated Engineering - Audi

Eliminate factory bottlenecks and weak plastic materials for increased flow and strength.

Brand:
Integrated Engineering - Corporate Logo
ES#:
4685216
Mfg#:
IETPCK6
In Stock
$447.99 USD
Free Shipping

B9 S4/S5 Downpipe & Resonator Delete Kit

ES#4715650 - 016752la02KT - B9 S4/S5 Downpipe & Resonator Delete Kit - No cutting required, easy-to-install downpipes with resonator deletes for your factory cat back exhaust. - ECS - Audi

No cutting required, easy-to-install downpipes with resonator deletes for your factory cat back exhaust. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4715650
Mfg#:
016752LA02KT
In Stock
ON SALE!
$479.99

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

$455.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 (S4/S5/SQ5) – Pure750 Upgraded Turbocharger

ES#4642701 - PURE-30T750KT - Audi B9 (S4/S5/SQ5) Pure750 Upgraded Turbocharger - Crank up your B9 over 700+awhp with this kit! Price includes a $800.00 refundable core charge. - Pure Turbos - Audi

Crank up your B9 over 700+awhp with this kit! Price includes a $800.00 refundable core charge.

Brand:
Pure Turbos - Corporate Logo
ES#:
4642701
Mfg#:
PURE-30T750KT
Ships on Nov 4, 2026
$3426.99

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

$3300.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

ES#258725 - 2041 - Synthoil Premium Engine Oil (5w-40) - 5 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 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
258725
Mfg#:
2041
In Stock
$61.99 USD
Free Shipping
on orders $49 and up

EA839 High Pressure Fuel Pump Piston Upgrade Kit

ES#4623625 - 034-106-6054 - EA839 High Pressure Fuel Pump Piston Upgrade Kit - Unlock up to 37% more flow over the factory high pressure fuel pump! - 034Motorsport - Audi Porsche

Unlock up to 37% more flow over the factory high pressure fuel pump! 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4623625
Mfg#:
034-106-6054
Back Ordered
$396.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Race Series FDS Intercooler System - B9/B9.5 S4/S5

ES#4698448 - IETPCK5 - IE Race Series FDS Intercooler System - B9/B9.5 S4/S5 - Increase horsepower and eliminate heatsoak - 280% larger than stock core! - Integrated Engineering - Audi

Increase horsepower and eliminate heatsoak - 280% larger than stock core! Requires IE Aluminum Charge Pipe Kit for installation (ES4685216)

Brand:
Integrated Engineering - Corporate Logo
ES#:
4698448
Mfg#:
IETPCK5
In Stock
$1414.99 USD
Free Shipping

Luft-Technik B9 S4 Front Mount Intercooler

ES#3537699 - 019219ecs01aKT - Luft-Technik B9 S4 Front Mount Intercooler - Reduce restrictions and increase cooling! - ECS - Audi

Reduce restrictions and increase cooling! 10X Entries Into Our F80 M3 Sweepstakes

For Pre-Facelift Models Only up to 11/08/2021

Brand:
ECS - Corporate Logo
ES#:
3537699
Mfg#:
019219ECS01AKT
In Stock
ON SALE! SAVE 15%
$742.99

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

$631.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B9 S4 3.0T Center X-Pipe

ES#3521607 - 024365ecs01KT - B9 S4 3.0T Center X-Pipe - Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note - ECS - Audi

Sound great and save weight! Eliminate the center resonator on your OE system for a more aggressive exhaust note 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3521607
Mfg#:
024365ECS01KT
In Stock
ON SALE! SAVE 25%
$438.99

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

$329.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 6200 Engine Oil (0W-20) - 1 Liter

ES#3552700 - 20236 - Top Tec 6200 Engine Oil (0W-20) - 1 Liter - Engineered to help enhance fuel economy. 508/509 approval. - Liqui-Moly - Audi Volkswagen

Engineered to help enhance fuel economy. 508/509 approval. 10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3552700
Mfg#:
20236
In Stock
24% off MSRP

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

$17.99

This product was last offered at the strikethrough price on
08-30-2026

$13.59 USD
Free Shipping
on orders $49 and up

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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