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Audi B5 S4 2.7T

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Audi B5 S4 2.7T Performance Parts & Upgrades

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Premium Performance Coilover

ES#1303510 - 39471-1 - Premium Performance Coilover - Ultra lightweight aluminum performance kit. Average lowering of 1.6"-2.5"F 1.3"-2.0"R - H&R - Audi

Ultra lightweight aluminum performance kit. Average lowering of 1.6"-2.5"F 1.3"-2.0"R We Price Match - Give Us A Call or Chat!
Fits Sedan models only

Brand:
H&R - Corporate Logo
ES#:
1303510
Mfg#:
39471-1
Ships in 3 Business Days
10% off MSRP

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

$2250.00

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

$2025.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 20mm With Black Conical Seat Bolts

ES#2748198 - ECS10159KTWBC1 - ECS Wheel Spacer & Bolt Kit - 20mm With Black Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that require conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748198
Mfg#:
ECS10159KTWBC1
In Stock
ON SALE!
$176.99

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

$168.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motorsport Front Sway Bar End Links Pair

ES#2873007 - 034-402-4018 - Motorsport Front Sway Bar End Links Pair - Replace your sloppy rubber factory sway bar end links - 034Motorsport - Audi Volkswagen

Replace your sloppy rubber factory sway bar end links 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2873007
Mfg#:
034-402-4018
Ships in 2 Business Days
ON SALE!
$230.00

This product was last offered at the strikethrough price on
08-17-2026

$208.80 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 17.5mm With Black Ball Seat Bolts

ES#2748195 - ECS10158KTWB1 - ECS Wheel Spacer & Bolt Kit - 17.5mm With Black Ball Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
2748195
Mfg#:
ECS10158KTWB1
In Stock
ON SALE! SAVE 25%
$169.99

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

$127.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Aluminum Rear Subframe Reinforcement Kit

ES#2893741 - 034-402-7002 - Billet Aluminum Rear Subframe Reinforcement Kit - Prevent rear subframe failure - 034Motorsport - Audi

Prevent rear subframe failure 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2893741
Mfg#:
034-402-7002
Ships in 2 Business Days
$218.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers (Black) - 12mm (1 Pair)

ES#2731437 - 2455571SW - DR Series Wheel Spacers (Black) - 12mm (1 Pair) - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2731437
Mfg#:
2455571SW
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.

$109.99

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

$98.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Stud Conversion Kit

ES#2804036 - 001467ECS01KT - Ball Seat Stud Conversion Kit - Make wheel changes faster and easier - ECS - Audi Volkswagen

Make wheel changes faster and easier 10X Entries Into Our F80 M3 Sweepstakes
For use with ball seat wheels and up to 10mm spacers only

Brand:
ECS - Corporate Logo
ES#:
2804036
Mfg#:
001467ECS01KT
In Stock
ON SALE!
$201.99

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

$191.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 10mm

ES#3618560 - 034-604-7001 - 034Motorsport Wheel Spacer Pair - 10mm - Designed to fit most Audi & Volkswagen vehicles with a 57.1mm center bore and 5x112mm wheel bolt patterns - 034Motorsport - Audi Volkswagen

Designed to fit most Audi & Volkswagen vehicles with a 57.1mm center bore and 5x112mm wheel bolt patterns 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3618560
Mfg#:
034-604-7001
Ships in 2 Business Days
ON SALE! SAVE 10%
$89.00

This product was last offered at the strikethrough price on
08-17-2026

$80.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#4745663 - 003901ECS40BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x40mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x40mm 10X Entries Into Our F80 M3 Sweepstakes
For use with 10-12.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
4745663
Mfg#:
003901ECS40BB
In Stock
ON SALE! SAVE 25%
$72.99

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

$54.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Billet Diverter Valve

ES#2862879 - CTSDV0005 - Billet Diverter Valve - Keep your turbo boosting like it should - CTS - Audi Volkswagen

Keep your turbo boosting like it should

Brand:
CTS - Corporate Logo
ES#:
2862879
Mfg#:
CTSDV0005
Ships in 7 Business Days
ON SALE! SAVE 20%
$149.99

This product was last offered at the strikethrough price on
08-26-2026

$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RS4 K04 Turbochargers - Complete Kit

ES#3658989 - 53049880025/26KT - RS4 K04 Turbochargers - Complete Kit - Comprehensive kit includes the left & right side RS4 K04 turbochargers, 034Motorsport RS4 Inlet Pipe set, and associated installation hardware - Assembled By ECS - Audi

Comprehensive kit includes the left & right side RS4 K04 turbochargers, 034Motorsport RS4 Inlet Pipe set, and associated installation hardware 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3658989
Mfg#:
53049880025/26KT
Ships in 2 Business Days
$3718.00

This product was last offered at the strikethrough price on
06-19-2026

$3715.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front EP24 "Enthusiast Performance" Brake Pad Set

ES#4739118 - EP24-977 - Front EP24 "Enthusiast Performance" Brake Pad Set - This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. - ECS - Audi Volkswagen Porsche

This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. 10X Entries Into Our F80 M3 Sweepstakes

For use with the Stage 4 Big Brake Kit

Brand:
ECS - Corporate Logo
ES#:
4739118
Mfg#:
EP24-977
In Stock
ON SALE! SAVE 20%
$184.99

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

$147.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ball Seat Locking Wheel Bolt Kit

ES#2795753 - 003901ECS45BB - Ball Seat Locking Wheel Bolt Kit - Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm - ECS - Audi Volkswagen

Black zinc coated wheel lock bolts made specifically for OE wheels. M14x1.5x45mm 10X Entries Into Our F80 M3 Sweepstakes
For use with 15-17.5mm spacers

Brand:
ECS - Corporate Logo
ES#:
2795753
Mfg#:
003901ECS45BB
In Stock
ON SALE! SAVE 25%
$82.99

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

$62.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit

ES#3521689 - S-05-BR - BR Series Coilover Suspension Kit - Featuring 30 levels of adjustment and performance spring rates and valving - BC Racing - Audi

Featuring 30 levels of adjustment and performance spring rates and valving

Brand:
BC Racing - Corporate Logo
ES#:
3521689
Mfg#:
S-05-BR
Ships in 5 Business Days
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Rear Crossmember / Differential Carrier - Street Density

ES#3432222 - 034-505-1000-SD - Billet Rear Crossmember / Differential Carrier - Street Density - Prevents failure of the factory cast aluminum piece - A must-have for drag/road racing - 034Motorsport - Audi

Prevents failure of the factory cast aluminum piece - A must-have for drag/road racing 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3432222
Mfg#:
034-505-1000-SD
Ships in 2 Business Days
ON SALE! SAVE 10%
$441.00

This product was last offered at the strikethrough price on
08-17-2026

$396.90 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover System - Fixed Damping

ES#2091945 - 10210032 - V1 Series Coilover System - Fixed Damping - Variant 1 coilovers offer the best balance between sporty driving and comfort - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort Range of lowering is 1.5-2.9" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2091945
Mfg#:
10210032
In Stock at Vendor
$1774.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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

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