K04-015X Upgrade turbo - 1.8T - 275hk.

K04-015X Upgrade Turbo – 1.8T – 275 hp
This upgraded K04-015X turbo is designed for longitudinal 1.8T engines and delivers a noticeable performance increase without requiring modifications. It fits directly onto the original exhaust manifold and downpipe, making installation simple and hassle-free. The intake is 51 mm instead of the original 45 mm, so a different intake hose is required.
The turbo can deliver up to approx. 275 hp with the correct setup and is a popular choice for Audi A4 and Volkswagen Passat 1.8T 5-valve longitudinal engines. The build quality is stable, well tested, and suitable for both street and moderate tuning use.

Specifications / quality:
The turbo is balanced on a VSR machine (same type of balancing as OEM)
Journal-bearing construction like the K04, designed for approx. 270 hp
No issues with axial play or imbalance when supplied with proper oil and cooling

XL 46.4 / 62 mm Compressor Wheel
41.7 / 56 mm Turbine Wheel

Turbo part / reference numbers:
53049880015
53049700015
53039880005
53039700013
53039880025
53039880029
53039880073

Turbo OE numbers:
058145703L
078145703B
058145703K
058145703J
058145703N

Fits:
1996–1999 Audi A4 1.8L 5V longitudinal
1996–1999 Volkswagen Passat 1.8L 5V longitudinal