Examining the Evidence Integrated Engineering (IE) recently published a YouTube video titled Will Tuning Your VW or Audi Hurt Your Engine? Honest Answer. The video addresses a question that any GTI owner considering an ECU tune should be asking. It is worth examining because the video’s answer is not supported by the evidence it claims
Will IE’s Tune Hurt Your Engine? Read More »
Background: Recently, I installed the Mabotech M600 turbocharger in my Mk7 GTI to collect boost onset data. In this post, I present the initial data and compare it with two other Mabotech turbochargers that were previously installed in the GTI. Test setup: The turbocharger assembly consists of the M600 CHRA, the small compressor housing, and
Mabotech M600 Boost Onset Testing Read More »
Background: I came across this video from a vendor named Tegiwa, published early in 2026. Since it was published, I’ve seen it referenced as proof that an open intake is inferior to a closed intake. Beyond the fact that the conclusion others draw from it isn’t adequately supported, this “ultimate intake test” reminded me of
Review: Tegiwa EA888 Ultimate Intake Test Read More »
