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Audi B6 A4 FWD 1.8T Performance Parts & Upgrades

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BFI Wheel Spacers - 25mm (Pair)

ES#3575938 - SP90BGB - BFI Wheel Spacers - 25mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi. Black Anodized - Black Forest Industries - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi. Black Anodized affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Black Forest Industries - Corporate Logo
ES#:
3575938
Mfg#:
SP90BGB
In Stock
$94.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Rail Spacer Kit

ES#3159 - ECS#152-2 - Fuel Rail Spacer Kit - Includes the necessary parts to raise your fuel rail for larger injectors - ECS - Audi Volkswagen

Includes the necessary parts to raise your fuel rail for larger injectors affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3159
Mfg#:
ECS#152-2
In Stock
ON SALE! SAVE 25%
$29.99

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

$22.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ferrea Valve Spring/Retainer Kit

ES#2794009 - FER18tSRKIT - Ferrea Valve Spring/Retainer Kit - Complete set of Ferrea high performance valve springs, and titanium retainers - Integrated Engineering - Audi Volkswagen

Complete set of Ferrea high performance valve springs, and titanium retainers affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
2794009
Mfg#:
FER18TSRKIT
Back Ordered
$939.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Billet Boost Tap Kit

ES#3221034 - 019935ECS01 - Billet Boost Tap Kit - Taps in between manifold vacuum line to create a boost reference source - Includes clamps - ECS - Audi Volkswagen

Taps in between manifold vacuum line to create a boost reference source - Includes clamps affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3221034
Mfg#:
019935ECS01
In Stock
Limited Qty Sale
$47.99

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

$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Special Active Front Strut - Priced Each

ES#3560594 - 82451008 - Special Active Front Strut - Priced Each - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Koni - Corporate Logo
ES#:
3560594
Mfg#:
82451008
In Stock at Vendor
ON SALE! SAVE 20%
$188.99

This product was last offered at the strikethrough price on
03-02-2026

$151.05 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

H&R Quick-Safe Stud Conversion Kit

ES#2731486 - Q-SPack45-40 - H&R Quick-Safe Stud Conversion Kit - Set of 20 studs. M14 x 1.5 x 40 - H&R - Audi Volkswagen

Set of 20 studs. M14 x 1.5 x 40 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2731486
Mfg#:
Q-SPACK45-40
Ships in 3 Business Days
$150.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#3509366 - JE18T242926 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
3509366
Mfg#:
JE18T242926
In Stock at Vendor
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 1, Driveshaft Center Support Bearing Carrier & Rear Differential Mount

ES#4751080 - ECSB6A4RA4S1EBKT - RA4 240mm Clutch Conversion Kit - Stage 1, Driveshaft Center Support Bearing Carrier & Rear Differential Mount - Lightweight flywheel with the S4 pressure plate and disc - Enthusiast Bundles - Audi

Lightweight flywheel with the S4 pressure plate and disc Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751080
Mfg#:
ECSB6A4RA4S1EBKT
Ships on Aug 11, 2026
Auto Notify
ON SALE! SAVE 25%
$1203.99

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

$899.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

JE Performance Piston Set

ES#2794316 - JE18T242909 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
2794316
Mfg#:
JE18T242909
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#4849836 - 353830 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
4849836
Mfg#:
353830
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers (Black) - 8mm (1 Pair) - Version 2

ES#4147947 - 1655572SW - DR Series Wheel Spacers (Black) - 8mm (1 Pair) - Version 2 - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits front only

Brand:
H&R - Corporate Logo
ES#:
4147947
Mfg#:
1655572SW
In Stock
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 8mm (1 Pair) - Version 2

ES#2537950 - 1655572 - DR Series Wheel Spacers - 8mm (1 Pair) - Version 2 - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits front only

Brand:
H&R - Corporate Logo
ES#:
2537950
Mfg#:
1655572
Ships in 3 Business Days
$99.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 3mm With Black Conical Seat Bolts

ES#2748179 - ECS10152KTWBC1KT - ECS Wheel Spacer & Bolt Kit - 3mm 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2748179
Mfg#:
ECS10152KTWBC1KT
In Stock
ON SALE! SAVE 25%
$119.99

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

$89.77 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 8mm With Ball Seat Bolts

ES#251543 - ECS#244KTWBLT - ECS Wheel Spacer & Bolt Kit - 8mm With 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
251543
Mfg#:
ECS#244KTWBLT
In Stock
ON SALE! SAVE 25%
$131.99

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

$98.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front BBK (Big Brake Kit) JHM 330mm Cayenne (Brembo 6-piston) NO CALIPERS

Finally a low cost front Big Brake kit solution that uses the popular Porsche Cayenne caliper (6-piston Brembo). affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
JH Motorsports - Corporate Logo
ES#:
4490500
Mfg#:
1019X330X32-NOCA
Ships in 10 Business Days
$879.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Clutch Kit - Stage 3

ES#1027 - B5S4CMCK - Clutch Kit - Stage 3 - More holding power & a Kevlar lined disc - Assembled By ECS - Audi

More holding power & a Kevlar lined disc affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Replacement clutch kit for the RA4 Stage 3 conversion

Brand:
Assembled By ECS - Corporate Logo
ES#:
1027
Mfg#:
B5S4CMCK
Ships in 7 Business Days
$864.99 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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