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Audi B5 A4 Quattro 1.8T

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Audi B5 A4 Quattro 1.8T Performance Parts & Upgrades

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BFI Wheel Spacers - 5mm (Pair)

ES#3575931 - SP55100112GB - BFI Wheel Spacers - 5mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi. Anodized Black - Black Forest Industries - Audi Volkswagen

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

Brand:
Black Forest Industries - Corporate Logo
ES#:
3575931
Mfg#:
SP55100112GB
Back Ordered
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Security Lockout Service

ES#2063654 - APRSECPRG-SRV - Security Lockout Service - *Sale only applies to purchases to ECU with 3 or 4 program options - APR - Audi Volkswagen

*Sale only applies to purchases to ECU with 3 or 4 program options Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
2063654
Mfg#:
APRSECPRG-SRV
In Stock
$59.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Fault Code Erase And Throttle Body Alignment Service

ES#2063651 - APRFCTB-SRV - Fault Code Erase And Throttle Body Alignment Service - *Sale only applies to purchases to ECU with 3 or 4 program options - APR - Audi Volkswagen

*Sale only applies to purchases to ECU with 3 or 4 program options Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
This upgrade must be performed at ECS Tuning's facility in Ohio.

Brand:
APR - Corporate Logo
ES#:
2063651
Mfg#:
APRFCTB-SRV
In Stock
$59.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Master LED Interior Lighting Kit - Red

ES#3137482 - 019396ECS05KT - Master LED Interior Lighting Kit - Red - Transform your complete interior in minutes with new LED interior bulbs from Ziza - ZiZa - Audi

Transform your complete interior in minutes with new LED interior bulbs from Ziza affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
3137482
Mfg#:
019396ECS05KT
Ships on Oct 1, 2026
Auto Notify
ON SALE! SAVE 50%
$117.99

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

$59.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rennline Heel/Toe Throttle Extension - Red

ES#2840457 - PE74HRED - Rennline Heel/Toe Throttle Extension - Red - Pedal extensions to customize your driving experience - Rennline - Audi

Pedal extensions to customize your driving experience affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Rennline - Corporate Logo
ES#:
2840457
Mfg#:
PE74HRED
Ships in 6 Business Days
$58.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

LED Overhead Lighting Kit

ES#2215382 - B5A4OVERHEAD - LED Overhead Lighting Kit - Transform your dome lamp lighting with these new LED bulbs from Ziza - ZiZa - Audi

Transform your dome lamp lighting with these new LED bulbs from Ziza affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
2215382
Mfg#:
B5A4OVERHEAD
In Stock
ON SALE! SAVE 10%
$62.99

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

$56.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

LED Overhead Lighting Kit - Red

ES#3138031 - 019396ECS05KT2 - LED Overhead Lighting Kit - Red - Transform your dome lamp lighting with these new LED bulbs from Ziza - ZiZa - Audi

Transform your dome lamp lighting with these new LED bulbs from Ziza affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
3138031
Mfg#:
019396ECS05KT2
Ships on Oct 1, 2026
Auto Notify
ON SALE! SAVE 10%
$62.99

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

$56.69 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Rear Sway Bar Bushing Set - Street - 15mm

ES#2650248 - PFR3-210-15X2 - Performance Rear Sway Bar Bushing Set - Street - 15mm - Stiffer bushings allow sway bars to work at their fullest potential - Powerflex - Audi

Stiffer bushings allow sway bars to work at their fullest potential affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Powerflex - Corporate Logo
ES#:
2650248
Mfg#:
PFR3-210-15X2
Ships in 2 Business Days
$51.99 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
034Motorsport - Corporate Logo
ES#:
3419786
Mfg#:
034-106-Z025
Ships in 3 Business Days
$51.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

LED Footwell Lighting Kit - Red

ES#3138036 - 019396ECS05KT5 - LED Footwell Lighting Kit - Red - Transform your footwell lighting with these new LED bulbs from Ziza - ZiZa - Audi

Transform your footwell lighting with these new LED bulbs from Ziza affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
3138036
Mfg#:
019396ECS05KT5
In Stock
ON SALE! SAVE 10%
$25.99

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

$23.39 USD
Free Shipping
on orders $49 and up
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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*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

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*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

Blow Off Valve - Atmospheric Service Kit

ES#3241238 - FMDVSK-WO34 - Blow Off Valve - Atmospheric Service Kit - Full replacement kit for es1832445 - Forge - Audi Volkswagen

Full replacement kit for es1832445 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Forge - Corporate Logo
ES#:
3241238
Mfg#:
FMDVSK-WO34
Ships in 4 Business Days
$17.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3021167
Mfg#:
Z1001791
Ships in 6 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.

$34.99

This product was last offered at the strikethrough price on
06-11-2026

$30.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Valve Spring Shim - Priced Each

ID:.515" / OD:0.796" / 0.015" thick affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Supertech - Corporate Logo
ES#:
4735967
Mfg#:
SS-3004
Ships in 9 Business Days
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

LED Trunk Lighting Kit

ES#2215383 - B5TRUNK - LED Trunk Lighting Kit - Illuminate the lighting in your trunk or hatch with new LED bulbs from Ziza - ZiZa - Audi

Illuminate the lighting in your trunk or hatch with new LED bulbs from Ziza affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ZiZa - Corporate Logo
ES#:
2215383
Mfg#:
B5TRUNK
In Stock
ON SALE! SAVE 10%
$25.99

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

$23.39 USD
Free Shipping
on orders $49 and up
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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