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Audi S4 Performance Engine & Drivetrain Parts

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Crankshaft Pulley Hardware Kit

ES#3142414 - n01473911kt2 - Crankshaft Pulley Hardware Kit - Includes brand new hardware to secure the crankshaft pulley to the sprocket - Genuine Volkswagen Audi - Audi

Includes brand new hardware to secure the crankshaft pulley to the sprocket

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3142414
Mfg#:
N01473911KT2
In Stock
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

In-Line Micro Regulator - 6 Bar

ES#4690254 - 601-0261 - In-Line Micro Regulator - 6 Bar - The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure! - Precision Raceworks - Audi BMW Volkswagen

The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690254
Mfg#:
601-0261
Ships in 9 Business Days
$64.99 USD
Free Shipping
on orders $49 and up

In-Line Micro Regulator - 5 Bar

ES#4690245 - 601-0260 - In-Line Micro Regulator - 5 Bar - The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure! - Precision Raceworks - Audi BMW Volkswagen

The worlds smallest universal regulator! Comes pre-set within precision tolerance to eliminate guesswork setting target pressure!

Brand:
Precision Raceworks - Corporate Logo
ES#:
4690245
Mfg#:
601-0260
Back Ordered
$64.99 USD
Free Shipping
on orders $49 and up

Optional Blue Spring R1 DV For 23-30 PSI. (Blue Springs Are Only Needed For Stage 3 Or Higher.)

ES#3021167 - Z1001791 - Optional Blue Spring R1 DV For 23-30 PSI. (Blue Springs Are Only Needed For Stage 3 Or Higher.) - DV100001 optional blue spring for 23-30 psi - APR - Audi Volkswagen

DV100001 optional blue spring for 23-30 psi Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
3021167
Mfg#:
Z1001791
Ships in 5 Business Days
11% off MSRP

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

$35.99

This product was last offered at the strikethrough price on
09-16-2026

$31.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Snub Mount

ES#3021940 - EBFIB67SM - Performance Snub Mount - Reduce your engine movement and improve shifting - Black Forest Industries - Audi

Reduce your engine movement and improve shifting

Brand:
Black Forest Industries - Corporate Logo
ES#:
3021940
Mfg#:
EBFIB67SM
Ships on Oct 2, 2026
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount Insert

ES#3194693 - CTS-HW-0150 - Transmission Mount Insert - Fills the large void in the factory transmission mount to reduce deflection - CTS - Audi

Fills the large void in the factory transmission mount to reduce deflection

Brand:
CTS - Corporate Logo
ES#:
3194693
Mfg#:
CTS-HW-0150
Special Order: No Guaranteed ETA
$59.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Pulley Installation Hardware Kit

ES#3142421 - N01473911KT3 - Lightweight Pulley Installation Hardware Kit - Includes brand new hardware to secure your new ECS Tuning Lightweight Pulley Set! - Assembled By ECS - Audi

Includes brand new hardware to secure your new ECS Tuning Lightweight Pulley Set! 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with Bosch style alternators

Brand:
Assembled By ECS - Corporate Logo
ES#:
3142421
Mfg#:
N01473911KT3
Ships in 1 day
ON SALE! SAVE 11%
$58.99

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

$52.75 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

FP34 Surge Tank Hardware Kit - -6AN Connections

ES#3419786 - 034-106-Z025 - FP34 Surge Tank Hardware Kit - -6AN Connections - Allows for -6AN connections for all inputs and outputs on the 034 FP34 Surge Tank - 034Motorsport - Audi Volkswagen

Allows for -6AN connections for all inputs and outputs on the 034 FP34 Surge Tank 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3419786
Mfg#:
034-106-Z025
Ships in 2 Business Days
$51.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each

ES#3647372 - ST-AEVI-1106S - Supertech Inconel Exhaust Valve - 1.8T/2.7T - Priced Each - +1mm oversized valve head diameter, single groove keeper setup for high RPM use - Supertech - Audi Volkswagen

+1mm oversized valve head diameter, single groove keeper setup for high RPM use *Valves priced individually - For 1.8T - qty 8 needed / For 2.7T - qty 12 needed - Please see long description for additional valve seal/keeper informati

Brand:
Supertech - Corporate Logo
ES#:
3647372
Mfg#:
ST-AEVI-1106S
Back Ordered
$44.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Meth Adapter - 90 Degree

ES#4029498 - 034-109-1006 - Water/Meth Adapter - 90 Degree - The 034Motorsport 90-Degree Adapter is the perfect solution when looking to route your water/meth nozzle in tight spaces under the hood. - 034Motorsport - Audi

The 034Motorsport 90-Degree Adapter is the perfect solution when looking to route your water/meth nozzle in tight spaces under the hood. 2X Entries Into Our F80 M3 Sweepstakes
This adapter is only for AEM water/meth kits.

Brand:
034Motorsport - Corporate Logo
ES#:
4029498
Mfg#:
034-109-1006
Back Ordered
$43.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Alternator Pulley Hardware Kit

ES#272865 - 030903181 - Alternator Pulley Hardware Kit - A new washer and nut to install your pulley - Genuine Volkswagen Audi - Audi Volkswagen

A new washer and nut to install your pulley For use with Valeo style alternators

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
272865
Mfg#:
030903181
Ships in 4 Business Days
9% off MSRP

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

$43.99

This product was last offered at the strikethrough price on
09-16-2026

$39.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Stainless Intake Valve - 1.8T/2.7T - Priced Each

ES#3647468 - ST-AIVN-1106S - Supertech Stainless Intake Valve - 1.8T/2.7T - Priced Each - +1mm oversized valve head diameter, single groove keeper setup for high RPM use - Supertech - Audi Volkswagen

+1mm oversized valve head diameter, single groove keeper setup for high RPM use *Valves priced individually - For 1.8T - qty 12 needed / For 2.7T - qty 18 needed - Please see long description for additional valve seal/keeper informa

Brand:
Supertech - Corporate Logo
ES#:
3647468
Mfg#:
ST-AIVN-1106S
Back Ordered
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Intake System Reflect-A-Gold Add-On - Kohlefaser Luft-Technik

ES#3610302 - 024131ecs01aKT - Audi B9 Intake System Reflect-A-Gold Add-On - Kohlefaser Luft-Technik - Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System - ECS - Audi

Pre-cut DEI Reflect-a-Gold to apply directly to your new Kohlefaser Luft-Technik Intake System 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3610302
Mfg#:
024131ECS01AKT
In Stock
ON SALE! SAVE 25%
$47.99

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

$35.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JHM Pushdown reverse spring kit for all 6-speed JHM shifters

ES#4046145 - STS-Springs - JHM Pushdown reverse spring kit for all 6-speed JHM shifters - Replacement springs for JHM 6 speed shifters. - JH Motorsports - Audi Volkswagen

Replacement springs for JHM 6 speed shifters. All 6-speed JHM shifters (does not fit any non JHM shifters)

Brand:
JH Motorsports - Corporate Logo
ES#:
4046145
Mfg#:
STS-SPRINGS
Ships in 10 Business Days
$5.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Standard Turbo Inlet Pipe Adapter Ring TS2 - 61.2mm

ES#4858428 - 034-108-Z124 - Standard Turbo Inlet Pipe Adapter Ring TS2 - 61.2mm - These Turbo Inlet Adapter Rings are designed to be a smooth transition between the turbocharger and accompanying Turbo Inlet. - 034Motorsport - Audi

These Turbo Inlet Adapter Rings are designed to be a smooth transition between the turbocharger and accompanying Turbo Inlet. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858428
Mfg#:
034-108-Z124
Ships in 2 Business Days
$25.00 USD
Free Shipping
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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