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Audi B5 A4 1.8T | Spring into power with Frankenturbo

ECS Tuning offers an exceptional complete bolt-on turbo upgrade kit that
requires no additional plumbing or modifications.

The FrankenTurbo F21 hybrid turbo upgrade allows you to use the turbocharger upgrade by itself with all factory components. You can also choose to upgrade your ECU and choice components for a more smooth, consistent power delivery.

The F21 utilizes an inconel 713C Alloy Steel "Mixed Flow" Turbine Rotor, forged billet aluminum alloy compressor wheel, 42CrMo high-strength rotor shaft, and an up-rated K16-series 360 degree thrust bearing and ring.


Spring into power

Fits:
Audi B5 A4 1.8T 1996-2001

F21 Hybrid Turbocharger
Complete bolt on Turbo upgrade includes exhaust manifold & Turbo inlet hose
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand: FrankenTurbo - Corporate Logo
ES#: 2840950
Mfg#: F21L

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Availability:
Ships in 3 Business Days
$1299.00 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
K03/K04 Turbocharger Installation Kit
All hardware & gaskets to install a new turbocharger
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 3366
Mfg#: B5KO4IK

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Availability:
In Stock
On SALE Save 20%
$123.99

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

$99.49 USD
Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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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