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Audi S4 Performance Engine & Drivetrain Parts

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Fuel Rail Spacer Kit

ES#3161 - ECS#152-4 - Fuel Rail Spacer Kit - Includes the necessary parts to raise your fuel rail - ECS - Audi

Includes the necessary parts to raise your fuel rail 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3161
Mfg#:
ECS#152-4
In Stock
ON SALE! SAVE 25%
$40.99

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

$30.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rebuild Kit For Billet Diverter Valve

ES#4304145 - 034-145-Z039 - Rebuild Kit For Billet Diverter Valve - Complete rebuild kit for 034MotorSport Billet Aluminum Diverter Valve - 034Motorsport - Audi Volkswagen

Complete rebuild kit for 034MotorSport Billet Aluminum Diverter Valve 2X Entries Into Our F80 M3 Sweepstakes
2 required

Brand:
034Motorsport - Corporate Logo
ES#:
4304145
Mfg#:
034-145-Z039
In Stock
$10.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

400LPH High Flow Fuel Pump (Metric Fittings)

ES#3691427 - 50-1009 - 400LPH High Flow Fuel Pump (Metric Fittings) - Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately - AEM Electronics - Audi Volkswagen

Designed for high performance naturally aspirated and forced induction EFI vehicles - It can be installed externally or in-tank using optional hardware that is sold separately 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#:
3691427
Mfg#:
50-1009
In Stock at Vendor
11% off MSRP

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

$224.99

This product was last offered at the strikethrough price on
11-03-2026

$199.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Verkstarkt Performance BOV

ES#4505749 - FVBOV - Verkstarkt Performance BOV - Verstarkt Performance Systems - Audi

Brand:
Verstarkt Performance Systems - Corporate Logo
ES#:
4505749
Mfg#:
FVBOV
Ships on Feb 2, 2027
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Flow Fuel Pump - 270 LPH

ES#4760097 - 0580254044 - High Flow Fuel Pump - 270 LPH - Great for when more fuel is needed in a custom fueling application - Hamburg Tech - Audi Volkswagen

Great for when more fuel is needed in a custom fueling application We Price Match - Give Us A Call or Chat!

Brand:
Hamburg Tech - Corporate Logo
ES#:
4760097
Mfg#:
0580254044
Ships in 3 Business Days
$99.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

SuperTech Valve Spring - Exhaust - Priced Each

ES#2102472 - SPR-H1002D-AU - SuperTech Valve Spring - Exhaust - Priced Each - Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. - Supertech - Audi Volkswagen

Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's.

Brand:
Supertech - Corporate Logo
ES#:
2102472
Mfg#:
SPR-H1002D-AU
Ships in 5 Business Days
$14.99 USD
Free Shipping
on orders $49 and up

Fluidampr Overdrive Ring - 179mm

ES#3557473 - 651201cr179KT - Fluidampr Overdrive Ring - 179mm - Includes 1300mm belt for use with 57mm or 63mm supercharger pulleys - iABED Industries - Audi Porsche

Includes 1300mm belt for use with 57mm or 63mm supercharger pulleys Only for us with Fluidampr 651201C.

Brand:
iABED Industries - Corporate Logo
ES#:
3557473
Mfg#:
651201CR179KT
Back Ordered
$203.99

This product was last offered at the strikethrough price on
08-31-2026

$191.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

X34 Carbon Fiber Air Scoop - Standard Intercooler Size

ES#4159458 - 034-108-Z068 - X34 Carbon Fiber Air Scoop - Standard Intercooler Size - Increase airflow for your 2.0T or 3.0T equipped B9 A4/S4/Allroad with the 034Motorsport X34 Carbon Fiber Intake Air Scoop! - 034Motorsport - Audi

Increase airflow for your 2.0T or 3.0T equipped B9 A4/S4/Allroad with the 034Motorsport X34 Carbon Fiber Intake Air Scoop! 2X Entries Into Our F80 M3 Sweepstakes
Will not fit vehicles with the active grille shutter system, such as B9.5 A4 and allroad.

Brand:
034Motorsport - Corporate Logo
ES#:
4159458
Mfg#:
034-108-Z068
Ships in 2 Business Days
$190.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Revo Supercharger Pulley and Belt Kit

CNC machined from high grade stainless steel, and designed with a smaller radius than the factory pulley.

Brand:
REVO - Corporate Logo
ES#:
4499781
Mfg#:
RA221M200100
Back Ordered
$187.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Pro ECU Tune With POWERlink Cable For 3.0T B9 S4, S5, & SQ5

ES#5528445 - IESOVZ15 - IE Pro ECU Tune With POWERlink Cable For 3.0T B9 S4, S5, & SQ5 - Audi left performance on the table. iE sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality. all backed by AutoProtect. - Integrated Engineering - Audi

Audi left performance on the table. iE sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality... all backed by AutoProtect.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5528445
Mfg#:
IESOVZ15
In Stock
Starting at $184.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE APEX ECU Tune With POWERlink Cable For 3.0T B9 S4, S5, & SQ5

ES#5528446 - IESOVZ16 - IE APEX ECU Tune With POWERlink Cable For 3.0T B9 S4, S5, & SQ5 - Audi left performance on the table. iE sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality. all backed by AutoProtect. - Integrated Engineering - Audi

Audi left performance on the table. iE sets it free by safely reprogramming your engine computer to unleash heavy-hitting acceleration, sharper response, and a completely new personality... all backed by AutoProtect.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5528446
Mfg#:
IESOVZ16
In Stock
Starting at $184.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

Let us help you find the parts that fit your Audi

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