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Audi A4 Performance Parts & Upgrades

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DR Series Wheel Spacers - 15mm (1 Pair)

ES#274 - 3055571 - DR Series Wheel Spacers - 15mm (1 Pair) - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
274
Mfg#:
3055571
In Stock
10% off MSRP

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

$119.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo B6 A4 High-flow Cat Pipe

ES#4043061 - CTSEXHTP0002B6CA - CTS Turbo B6 A4 High-flow Cat Pipe - Seamlessly fits in place of your restrictive stock cat - Features 3 stainless steel piping, smooth mandrel bends, and two 02 sensor bungs - CTS - Audi

Seamlessly fits in place of your restrictive stock cat - Features 3″ stainless steel piping, smooth mandrel bends, and two 02 sensor bungs

Brand:
CTS - Corporate Logo
ES#:
4043061
Mfg#:
CTSEXHTP0002B6CA
In Stock
ON SALE! SAVE 10%
$249.99

This product was last offered at the strikethrough price on
07-10-2026

$224.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turbo Muffler Delete

ES#3419340 - TS-VW-393A - Turbo Muffler Delete - Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete - Torque Solution - Audi Volkswagen

Replace the factory turbo muffler with a straight, uninterrupted billet aluminum delete

Brand:
Torque Solution - Corporate Logo
ES#:
3419340
Mfg#:
TS-VW-393A
Back Ordered
Auto Notify
3% off MSRP

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

$94.43

This product was last offered at the strikethrough price on
07-26-2026

$91.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Power Stop Euro-Stop Premium Front Brake Kit (320mm)

ES#3146799 - ESK5752 - Power Stop Euro-Stop Premium Front Brake Kit (320mm) - A premium OE-equivalent front axle upgrade featuring ECE-R90 certified brake pads, genuine Geomet coated high-carbon smooth rotors, and an integrated electronic wear sensor. - Power Stop - Audi

A premium OE-equivalent front axle upgrade featuring ECE-R90 certified brake pads, genuine Geomet® coated high-carbon smooth rotors, and an integrated electronic wear sensor.

Brand:
Power Stop - Corporate Logo
ES#:
3146799
Mfg#:
ESK5752
In Stock
$245.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW Street Comfort Kit

ES#2951370 - 18010058kt - KW Street Comfort Kit - Street Comfort coilovers offer sport handling with adjustable ride height - KW Suspension - Audi

Street Comfort coilovers offer sport handling with adjustable ride height Avant & Cabriolet models only

Brand:
KW Suspension - Corporate Logo
ES#:
2951370
Mfg#:
18010058KT
Back Ordered
$2454.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VTT “OBD-LOCK” ODB Port Locking Tool

ES#4766229 - VTT-OBD-LOCK - VTT OBD-LOCK ODB Port Locking Tool - Prevent Dealerships From Re-Flashing Your Car Against Your Wishes! - Vargas Turbo Technologies - Audi BMW Volkswagen Mercedes Benz Porsche

Prevent Dealerships From Re-Flashing Your Car Against Your Wishes! 2X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles Produced After 1995

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4766229
Mfg#:
VTT-OBD-LOCK
In Stock
$97.99 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

Brand:
034Motorsport - Corporate Logo
ES#:
2993008
Mfg#:
034-509-0047
Back Ordered
$611.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Lightweight Flywheel Kit - Stage 1

ES#2771104 - 003485ECS01AKT - Performance Lightweight Flywheel Kit - Stage 1 - ECS Lightweight Flywheel with the Spec Stage 1 clutch kit rated at 315ft/lbs - ECS - Audi

ECS Lightweight Flywheel with the Spec Stage 1 clutch kit rated at 315ft/lbs 10X Entries For Our 25th Anniversary Sweepstakes!

From VIN 8K-9-066500, split is in the 2009 model year

Brand:
ECS - Corporate Logo
ES#:
2771104
Mfg#:
003485ECS01AKT
Ships on Sep 25, 2026
Auto Notify
ON SALE!
$2567.99

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

$2439.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034 Motorsport 12.5mm Wheel Spacer - Pair

ES#4751517 - 034-604-7021 - 034 Motorsport 12.5mm Wheel Spacer - Pair - 12.5mm Wheel Spacer Pair is designed to fit most Audi & BMW vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

12.5mm Wheel Spacer Pair is designed to fit most Audi & BMW vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns.

Brand:
034Motorsport - Corporate Logo
ES#:
4751517
Mfg#:
034-604-7021
Ships in 6 Business Days
$106.00 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!

Brand:
034Motorsport - Corporate Logo
ES#:
4505757
Mfg#:
034-106-Z056
In Stock
$28.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit

ES#1162 - B5QSSBLK - Front & Rear Exact-Fit Stainless Steel Brake Lines - Kit - Complete set of DOT-compliant lines for an improved pedal feel - ECS - Audi

Complete set of DOT-compliant lines for an improved pedal feel 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
1162
Mfg#:
B5QSSBLK
In Stock
ON SALE!
$212.99

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

$202.34 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts

ES#4042990 - EMD-SPACER10571B - EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts - Includes everything you need to install spacers on two wheels - Emmanuele Design - Audi Volkswagen

Includes everything you need to install spacers on two wheels Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042990
Mfg#:
EMD-SPACER10571B
Ships in 3 Business Days
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

2.76" stainless steel with your choice of tip style

Brand:
Milltek Sport - Corporate Logo
ES#:
4159433
Mfg#:
B9A4RESONATED
Ships in 3 Business Days
Starting at $2411.99 USD
Customize
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Silicone Throttle Body Hose

ES#3071902 - 017622ECS01A - Silicone Throttle Body Hose - Engineered to allow for maximum possible airflow - ECS - Audi

Engineered to allow for maximum possible airflow 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3071902
Mfg#:
017622ECS01A
In Stock
ON SALE! SAVE 25%
$118.99

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

$89.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Front Subframe Bushings

ES#2864606 - 034-601-0000 - Billet Front Subframe Bushings - Hold suspension geometry under severe cornering forces! - 034Motorsport - Audi

Hold suspension geometry under severe cornering forces!

Brand:
034Motorsport - Corporate Logo
ES#:
2864606
Mfg#:
034-601-0000
In Stock
$219.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Drivetrain Mount Insert Kit

ES#3194637 - 019208ecs01KT1 - Complete Drivetrain Mount Insert Kit - Decrease slop and increase drivetrain rigidity and response! - ECS - Audi

Decrease slop and increase drivetrain rigidity and response! 10X Entries For Our 25th Anniversary Sweepstakes!

Does not fit manual transmission models

Brand:
ECS - Corporate Logo
ES#:
3194637
Mfg#:
019208ECS01KT1
In Stock
ON SALE! SAVE 10%
$242.99

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

$218.69 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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