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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Engine Turbocharger Parts

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K04-015 Turbocharger Upgrade & Ajusa Installation Kit (1.8T)

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

Brand:
BorgWarner - Corporate Logo
ES#:
5516702
Mfg#:
058145703KO42KT
Back Ordered
$1868.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BorgWarner EFR 6258-G Turbo - 0.80 A/R, T4 Twin Scroll

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:
BorgWarner - Corporate Logo
ES#:
4143465
Mfg#:
11589880036
Back Ordered
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
10-13-2026

$2898.99 USD
This product is lifetime replacement eligible Lifetime Replacement

K03 Turbocharger

Stock/OE replacement turbocharger, hardware not included For vehicles with BEX engine code only

Brand:
BorgWarner - Corporate Logo
ES#:
4381804
Mfg#:
06B145703B
Back Ordered
$1511.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Turbocharger Parts

Whether you're repairing an existing turbo or adding one, ECS Tuning has turbos, turbo kits, and all the turbocharger hardware and valving you need to turn forced induction into added power.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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