Audi MKI TT KO4 Turbocharger With ECS Installation Kit

Oh-4. Oh Boy! Pump out some fun with a Borg Warner KO4 turbo. Use it as a bolt-on repair option for a trashed KO3, or as a direct fit performance upgrade.

Our complete kit contains a legendary Borg Warner KO4 turbo, plus gaskets and hardware to save installation time, and prevent unwanted do-overs.

Use it alone or as part of a complete performance upgrade. ECS carries a complete line of turbo accessories, exhaust upgrades, and sofware tweaks, so you can take full advantage of the KO4's bigger boost.