This VR38DETT demand for more Higher Rpm power and Torque.. We decided to change his stock turbo to the Upgraded version with the Garret ball bearing catridges + billet wheels . Upgraded Fuel pump + 1000cc injectors are Needed to assure the fuel is sufficient to do the job. Since this engine is still using the stock internal, the tuning won't be really aggresive. Stay Tuneee
This is the comparison from the stock turbo to the Hybrid Turbo Upgrade with stock internal. About 85whp increase with this upgrade. This is only with 20psi with Ron97.