If you go IS20 (or either turbo) 100% get the DGS tune as well. That will remap your shift points to align with the new powerband of the turbos. In D mode it’ll be fairly unnoticeable until you really put your foot into it… in S mode it’ll really come alive, much more aggressive upshifts and downshifts.
Both turbos are OEM and are very safe to use on the 1.8. Really comes down to your preference. Though any mod is changing the stock equipment and introducing potential risk.
IS20 will be more peppy with the new power right and the jump, but then fall off before the redline, whereas the IS38 is more subtle down lowbut will pull real hard all the way to the top.
And different tunes give you the power in different ways, whether through timing or just more boost.
Both turbos are OEM and are very safe to use on the 1.8. Really comes down to your preference. Though any mod is changing the stock equipment and introducing potential risk.
IS20 will be more peppy with the new power right and the jump, but then fall off before the redline, whereas the IS38 is more subtle down lowbut will pull real hard all the way to the top.
And different tunes give you the power in different ways, whether through timing or just more boost.
