Audi A4 Performance Engine Parts

Stainless steel system with high flow catalytic converter Requires Dual exit rear valance

Brand:

ES#:

3107600

Mfg#:

767821KT

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

Brand:

ES#:

5457434

Mfg#:

UVM76MMTSTYLEX1

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

Brand:

ES#:

5457432

Mfg#:

UVM76MMDUALOUTX1

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

Brand:

ES#:

5457437

Mfg#:

UVM.89MM.X1

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

Brand:

ES#:

4686062

Mfg#:

UVM.63MM.X1

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

Brand:

ES#:

5457424

Mfg#:

UVM63MMDUALOUTX2

This high-performance engine kit combines an upgraded dual-spring valvetrain, Inconel and nitrided valves, a top-end gasket set, and premium tri-metal race main bearings. 10X Entries Into Our F80 M3 Sweepstakes

Brand:

ES#:

5481342

Mfg#:

SPRK-AUDI18VKT

$1702.99 USD

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Free Shipping

on orders $49 and up

Lifetime Replacement

Upgrade your longitudinal 1.8T with this complete K04 turbocharger and Ajusa sealing hardware bundle.

Brand:

ES#:

5516702

Mfg#:

058145703KO42KT

$1868.99 USD

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Free Shipping

on orders $49 and up

Lifetime Replacement

EFR delivers quick boost response, powerful performance and reliable durability - 0.80 A/R, T4 Twin Flow Flange, 49mm Compressor Inducer Dia, 62mm Compressor Wheel O.D., 58mm Turbine Wheel O.D. *To be used with custom turbocharger applications only - T4 flange manifold, custom fueling, tuning/software, and internals necessary*

Brand:

ES#:

4143465

Mfg#:

11589880036

22% off MSRP

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

$3723.99

This product was last offered at the strikethrough price on
10-07-2026

$2898.99 USD

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Lifetime Replacement