KKK K04 Turbocharger from Borg Warner.
A direct replacement for the K03 equipped B5/B6 A4/Passat 1.8T models.
Can replace the stock K03 turbo on above models w/o software or hardware upgrades.
To acheive the most potential a software upgrade is highly recommended.
Flows more than the stock K03. Sustains higher boost levels. Recommended upgrade delivering factory drivability & additional performance.
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