What it is
This is a complete side-mount intercooler (SMIC) upgrade kit for the VW Mk4 BEW 1.9L TDI, manufactured by Darkside Development (a third-party UK performance brand, not a KermaTDI-branded product).
What's included
Key compatibility fact
This kit retains the factory EGR and ASV (auxiliary shut-off valve) systems, it's not an emissions-delete product. It's a direct upgrade to the charge-air piping and intercooler, not a system that requires removing emissions components.
Fitment
2004-2006 VW Mk4 Golf, Jetta, and Jetta Wagon, BEW engine.
Availability
Limited supply.
Installation resource
KermaTDI provides a separate pipework fitting tips PDF for this kit.
Common questions
Does installing this kit require removing my EGR system? No, it's designed to retain both the factory EGR and ASV systems intact.
Is this a KermaTDI-branded intercooler, or a different manufacturer? Manufactured by Darkside Development, a UK-based brand; KermaTDI sells it, but it's not a Kerma in-house product.
Does this kit include a MAP sensor? It includes a MAP sensor boss (mounting provision) on the intercooler itself, not a MAP sensor. Check separately whether your MAP sensor is included or needs to be reused/purchased.
Does this kit fit a 2003 BEW Golf? No, fitment starts at 2004, consistent with BEW engine production, which began in 2004.
