IS38 Turbocharger Upgrade for VW and Audi MQB Models

The CTS IS38 replacement turbocharger is a brand-new unit for MQB vehicles — a direct drop-in for the factory IS38, or a serious upgrade over the IS12 and IS20. Installation is a straightforward swap of the factory turbo using all OEM gaskets and hardware; simply transfer your diverter valve or BOV and wastegate actuator (not included). CTS recommends pairing it with a CTS downpipe and intercooler when upgrading.

Features

• Brand new unit, no core required
• Exact replacement for the factory IHI IS38 turbo
• Upgraded turbine shaft and bearings
• Stainless steel turbine housing
• Manufactured to OEM-spec tolerances

Fitment (tuning required for IS12 and IS20 vehicles; ROW models can vary)

• 2015-2019 VW Golf/Sportwagen/Alltrack
• 2015-2020 VW GTI
• 2015-2019 VW Golf R
• 2019-2023 VW Jetta GLI
• 2018-2021 VW Arteon
• 2015-2020 Audi A3
• 2015-2020 Audi S3
• 2015-2020 Audi TT
• 2015-2020 Audi TTS

Hardware required (not included)

• 06L253039A — Turbo Inlet Gasket
• 5Q0253115B — Turbo Outlet Seal
• WHT007210 — Turbo Mount Nuts (x4)
• N90067202 — Turbo Oil Line O-ring (x2)
• WHT006112 — Turbo Oil Line Gasket
• WHT006113 — Turbo Oil Line Gasket
• WHT006114 — Coolant Hose O-Ring
• WHT006124 — Coolant Hose O-Ring
• WHT005558 — Coolant Hose O-Ring

Proper tuning software must be used when upgrading from a smaller turbo — check with your tuning provider; any IS38 software is compatible. Always follow the correct procedure for checking and adjusting the wastegate actuator during install, replace engine oil, and prime the turbocharger before starting. Professional installation recommended.

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.