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Product description

Has your factory turbocharger failed? Are you looking to increase the power in your A4? If so a BorgWarner K04 turbocharger is perfect for you. The K04 installs in the factory turbocharger location and uses all factory plumbing include intake, downpipe, exhaust manifold, and oil/coolant lines. Installation is straight forward, simply remove the factory turbocharger and the K04 drops right in.

The K04 turbocharger features a larger compressor and turbine wheel which provides for increased horsepower and torque over factory. When couple with fuel and software upgrades you can expect power gains of 40+ horsepower and torque.

Customer feedback

Nico Silvestri
Nov 4, 2015
Great product performance overall. Great sound - has diesel whistle effect on the 1.8t's. Incredible power delivery when spooled. For the money it is well worth it over larger turbos; cool thing is, you can keep stock ex.mani and stock internals.

Advantages: If you know how to perform mechanical work, it essentially drops right in. Easy installation. For audi 1.8t I recommend...highly recommend...removing front bumper before installation process. Makes task more efficient.

Disadvantages: There are none. It's an upgrade...not a downgrade. Personal experience to back up my statement.
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12.00# 10.00x10.00x10.00

BorgWarner K04-0015 Turbocharger

(1 reviews)

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MFG# 53049880015
SKU# 5732
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This item will ship from an alternate warehouse. Shipping times vary by location but you will be provided with updates when your order is placed.
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  • Fits my car?
  • Make Model Year Engine
    Audi A4 B5 (96-2001) 1.8T (FWD)
    Audi A4 B5 (96-2001) 1.8T (Quattro)
    Audi A4 B6 (02-2005) 1.8T (FWD)
    Audi A4 B6 (02-2005) 1.8T (Quattro)
    Volkswagen Passat B5 (98-2005) 1.8T