May 4, 2020 · I had an otherwise unused KO4-022 laying around. I used a handheld die-grinder to slowly and carefully enlarged the throat of a KO3-029 turbine housing from 39.3mm up to 43.3 …

Jul 22, 2009 · Any additional comments on your setup? I am debating between APR ko4 and HPA ko4 with manifold. Sent from my iPhone using Audizine Brandon, My car is a manual and the …

Jul 12, 2016 · The K04-064 has a modern-specification "full back" turbine rotor. What that means is the backplate in the casting carries all the way out to the rotor's widest edges. …

May 30, 2012 · So I ordered a ko4 turbo but I can't find the injectors I need for the upgrade. Does anybody have a link or the part # for the injector. Thanks guys!

Aug 5, 2018 · First I apologize if there is a detailed discussion, but I can't find an A > Z guide on exactly what is needed to upgrade my b8.5 from its factory k03 to a k04. Does anyone have a …

As far as a oem sized KO4-015 goes, the bump in capability over stock is about 15 hp, with a typical estimated crank hp of 220 to 230. There are a lot of hybrid KO4-15 options that claim …

Apr 30, 2014 · That being said, the ko4 is a good bump but nothing extraordinary. Frankly, If I was starting from a blank slat I would jump to the ft21/ft25 immediately. I want to get a ride in a ft21 …

May 28, 2008 · Will the KO3 turbo muffler delete work on the KO4 turbo? I assume it will work but wanted to see if anyone can verify. TIA.

May 24, 2013 · B8 Ko4 ownership follow up / Ko4 Club / Used Ko4 exchange & Sales Guest-only advertisement. Register or Log In now!

Sep 2, 2011 · Will a ko4 center section mate to a ko3 turbine/compressor housings? Guest-only advertisement. Register or Log In now! Basically... I have a ko4 center section from my old …