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Audi C4 S4 Quattro 20v T Performance Parts & Upgrades

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Heavy Duty Hose Clamp Kit

ES#1367 - S4S6THCK - Heavy Duty Hose Clamp Kit - Fits ECS/Samco Hose that goes from the turbo to the cross-over pipe - Samco - Audi

Fits ECS/Samco Hose that goes from the turbo to the cross-over pipe

Brand:
Samco - Corporate Logo
ES#:
1367
Mfg#:
S4S6THCK
In Stock
$36.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 4mm (1 Pair)

ES#3570106 - MS100151 - Wheel Spacer Kit - 4mm (1 Pair) - 4mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi Volkswagen

4mm spacers to perfectly dial in your stance or clear your big brake kit! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3570106
Mfg#:
MS100151
Ships in 5 Business Days
ON SALE! SAVE 10%
$76.99

This product was last offered at the strikethrough price on
07-31-2026

$69.16 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Kit - 3mm (1 Pair)

ES#3570105 - MS100150 - Wheel Spacer Kit - 3mm (1 Pair) - 3mm spacers to perfectly dial in your stance or clear your big brake kit! - APR - Audi Volkswagen

3mm spacers to perfectly dial in your stance or clear your big brake kit! Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3570105
Mfg#:
MS100150
Ships in 5 Business Days
ON SALE! SAVE 10%
$71.99

This product was last offered at the strikethrough price on
07-31-2026

$64.52 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! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
3021167
Mfg#:
Z1001791
Ships in 5 Business Days
ON SALE! SAVE 12%
$31.99

This product was last offered at the strikethrough price on
07-31-2026

$28.04 USD
Free Shipping
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

Brand:
Forge - Corporate Logo
ES#:
3241238
Mfg#:
FMDVSK-WO34
Ships in 3 Business Days
$17.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Rail With AAN Brackets

ES#4858190 - 034-106-7026 - Fuel Rail With AAN Brackets - CNC Machined to accept standard EFI type injector O-rings - 034Motorsport - Audi

CNC Machined to accept standard EFI type injector O-rings

Brand:
034Motorsport - Corporate Logo
ES#:
4858190
Mfg#:
034-106-7026
Ships in 2 Business Days
$222.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AFe CONTROL Billet Aluminum Wheel Spacers - 10mm

ES#5396033 - 610-611001-B - AFe CONTROL Billet Aluminum Wheel Spacers - 10mm - This item requires longer wheel bolts or studs, not included. - AFE - Audi Volkswagen

This item requires longer wheel bolts or studs, not included.

Brand:
AFE - Corporate Logo
ES#:
5396033
Mfg#:
610-611001-B
In Stock at Vendor
20% off MSRP

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

$117.99

This product was last offered at the strikethrough price on
08-01-2026

$94.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AFe CONTROL Billet Aluminum Wheel Spacers - 20mm

ES#5396038 - 610-611004-B - AFe CONTROL Billet Aluminum Wheel Spacers - 20mm - This item requires longer wheel bolts or studs, not included. - AFE - Audi Volkswagen

This item requires longer wheel bolts or studs, not included.

Brand:
AFE - Corporate Logo
ES#:
5396038
Mfg#:
610-611004-B
Ships in 3 Business Days
20% off MSRP

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

$135.00

This product was last offered at the strikethrough price on
05-28-2026

$108.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AFe CONTROL Billet Aluminum Wheel Spacers - 18mm

ES#5396035 - 610-611003-B - AFe CONTROL Billet Aluminum Wheel Spacers - 18mm - This item requires longer wheel bolts or studs, not included. - AFE - Audi Volkswagen

This item requires longer wheel bolts or studs, not included.

Brand:
AFE - Corporate Logo
ES#:
5396035
Mfg#:
610-611003-B
In Stock at Vendor
20% off MSRP

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

$117.99

This product was last offered at the strikethrough price on
08-01-2026

$94.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

AFe CONTROL Billet Aluminum Wheel Spacers - 15mm

ES#5396034 - 610-611002-B - AFe CONTROL Billet Aluminum Wheel Spacers - 15mm - This item requires longer wheel bolts or studs, not included. - AFE - Audi Volkswagen

This item requires longer wheel bolts or studs, not included.

Brand:
AFE - Corporate Logo
ES#:
5396034
Mfg#:
610-611002-B
In Stock at Vendor
20% off MSRP

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

$117.99

This product was last offered at the strikethrough price on
08-01-2026

$94.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Polyurethane Front Engine Mounts - Black (Track)

ES#4701554 - ELA-001-85 - Polyurethane Front Engine Mounts - Black (Track) - Performance engine mounts to increase drivetrain rigidity - Verkline - Audi

Performance engine mounts to increase drivetrain rigidity

Brand:
Verkline - Corporate Logo
ES#:
4701554
Mfg#:
ELA-001-85
Ships in 10 Business Days
$240.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 4 Extreme Clutch Kit

Designed for extreme power that needs to be put to the wheels. Conservatively rated at 600+ ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
4056403
Mfg#:
SBCAANF-SS-XKT
Ships in 1 Business Day
$1687.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Limited Slip Differential

Put all your power to the ground!

Brand:
Wavetrac - Corporate Logo
ES#:
3006274
Mfg#:
18309160WK
Ships in 2 Business Days
$1515.99 USD
Free Shipping
on orders $49 and up

HPA 25mm Wheel Spacers Bolt On Style - 5x112 57.1CB - Pair

ES#5434329 - HVW-825 - HPA 25mm Wheel Spacers Bolt On Style - 5x112 57.1CB - Pair - Achieve an aggressive, flush stance with HPAs 25mm bolt on hubcentric spacers precision CNC machined, anodized black, and designed for a secure two piece mount for maximum stability and fitment confidence. - HPA Motorsports - Audi Volkswagen

Achieve an aggressive, flush stance with HPA’s 25mm bolt on hubcentric spacers precision CNC machined, anodized black, and designed for a secure two piece mount for maximum stability and fitment confidence.

Brand:
HPA Motorsports - Corporate Logo
ES#:
5434329
Mfg#:
HVW-825
Ships on Aug 24, 2026
$160.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

HPA Wheel Spacer & Bolt Kit - 20mm

ES#5434060 - HVA-823 - HPA Wheel Spacer & Bolt Kit - 20mm - Push your wheels out for a bold stance with HPAs 20mm Wheel Spacer & Bolt Kit - precision CNC machined hubcentric spacers and extended hardware for a secure, vibration free fit. - HPA Motorsports - Audi Volkswagen

Push your wheels out for a bold stance with HPA’s 20mm Wheel Spacer & Bolt Kit - precision CNC machined hubcentric spacers and extended hardware for a secure, vibration free fit.

Brand:
HPA Motorsports - Corporate Logo
ES#:
5434060
Mfg#:
HVA-823
Ships on Aug 24, 2026
Starting at $150.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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