Cert Different for Turbo Skyline RB20DET

[yatesr32]

Hi My stock turbo blew and since I plan for more power in future to save cost got straight to a after market one nothing huge so heres my question Since this is neither additional and I plan to run Factory boost or very close as factory ECU and only changing the waste gate spring say 8psi where factory is 6 this is very safe a defiantly not 20% power increase does this still require a cert? As I want to cert all mods in one hit after I get a WOF on it has not had one in 7 years so I don't want to jump straight into certing just yet. Thanks Benjamin     

[Leon]

Good morning Benjamin

From the VIRM, yes, a change to a non factory turbo (any upgraded turbo in fact) will require a cert.

vehicleinspection.nzta.govt.nz/virms/in-service-wof-and-cof/general/miscellaneous-items/engine-and-transmission

Note 2

LVV certification is always required for the fitting of a supercharger or turbocharger as a modification, or the upgrading of a supercharger, turbo or wastegate, or the re-chipping of electronic engine control units on turbo vehicles.