Cobb GTI IS38 - Boost

Cobb Tune – OTS IS38 GTI

Background: For a couple of years, I’ve been reading fellow enthusiast cautions about using the Cobb “bundled” tunes that come with the Cobb Accessport. These are tunes that may be preinstalled on an Accessport, or can be freely downloaded from the Cobb website. People have stated: It’s not “refined”. It doesn’t make good “power”. Cobb […]

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Intake Power Gains Boxplot

Intake Power Gains

Background: Intake power gains, or the lack thereof, is a regular theme when questions are posed about the “best intake”. The responses are fairly uniform: The responses are so consistent that sometimes when people ask about intakes they preface the question by stating they “know” that intakes don’t make any power: I was curious to

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HPA Intercooler Flow Test

HPA Intercooler Flow Testing

Background: HPA sells an upgraded tube and fin style intercooler for the Mk7 to replace the stock location IC. A fellow Mk7 enthusiast sent me their HPA intercooler to run some tests with. The first measurements recorded are of the airflow through the external fins and the internal fins using a flow bench. Test Procedures:

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