Turbo size comparison of IS20 vs IS38 vs TPC38BB Is38 Hybrid
MK7 Jetta GLI "IS38 Hybrid Turbo" Update Hey guys just a quick video comparing the IS20 to the IS38 and the TPC38 V1. Coupled with a major redesign of the OEM bearing housing, the HPA IS38 Hybrid turbo is the perfect upgrade for those looking for a significant performance boost ...