Audi B5 A4 Quattro 1.8T Performance Engine Parts

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

5457431

Mfg#:

UVM.63MM.X2

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

5457433

Mfg#:

UVM76MMDUALOUTX2

Unleash the hidden power in your vehicle to get instant feedback & response! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

3569754

Mfg#:

PC 08

Increase power and efficiency while decreasing combustion temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Naturally Aspirated Engines

Brand:

ES#:

2972925

Mfg#:

30-3350

11% off MSRP

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

$658.99

This product was last offered at the strikethrough price on
07-05-2026

$584.99 USD

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Lifetime Replacement

The Gen-V WG50 Pro-Gate50 external wastegate is a cost effective, high performing 50mm external wastegate. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
*General use wastegate for custom, externally gated big turbo applications - Not a direct fit wastegate*

Brand:

ES#:

4007256

Mfg#:

TS-0554-1012

Provides broad range control of destructive crankshaft torsional vibration for optimum horsepower and durability affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This is a custom product and requires 2-3 week lead time to manufacture due to the zinc plating process.
Engine codes AEB & ATW

Brand:

ES#:

3557367

Mfg#:

551201_AEB

$569.00 USD

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Lifetime Replacement

Pairs with all types of coolant to increase heat transfer and decrease engine temps. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

2764643

Mfg#:

MMRALC

$22.99 USD

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Lifetime Replacement

+1mm oversized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
*Oversized valves require extra machine work to the cylinder head.*

Brand:

ES#:

3647534

Mfg#:

ST-AIVN-1106SKT

$545.99 USD

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Lifetime Replacement

Stock sized 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:

ES#:

3647467

Mfg#:

ST-AIVN-1103S

$29.99 USD

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Lifetime Replacement

Keep your engine planted and transfer as much power to the ground as possible affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

4044639

Mfg#:

EBFIB56ES2KT

$529.99 USD

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Lifetime Replacement

Stock sized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:

ES#:

3647522

Mfg#:

ST-AEVI-1103SKT

$519.99 USD

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Lifetime Replacement

Keep your turbo boosting like it should affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

2917784

Mfg#:

DV25

$129.99 USD

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Lifetime Replacement

For vehicles with small port heads and large port intake manifold affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:

ES#:

2794391

Mfg#:

IEBAVA16

$127.99 USD

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Lifetime Replacement

Snow Performance Hyper-Sonic water-methanol injection nozzle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:

ES#:

4505337

Mfg#:

SN0-N1400

$31.99 USD

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Lifetime Replacement