Poll: Turbocharger Size August 23, 2023 185Turbocharger SizeConducting a poll to gauge the distribution of turbocharger sizes people are using. Stock turbo: IS20 (GTI) or IS38 (Golf R)63.2% OEM Upgrade: GTI with IS38/+16.8% Larger than IS38/+20% Link to Poll table of contents page. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading... Related