Grate Test - Airbox Entrance Strips

Snow Guard Water Test – Part 3

Background: In the spirit of “My experience owning a Mk7 GTI”, this post starts with the motivation to conduct a test to determine if the “snow guard” helps to prevent water from reaching the air filter. Like a number of tests, this one began as a discussion with some other GTI owners about a part […]

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Vargas Turbo Cold Side Charge Pipe Flow Test

Vargas Charge Pipe Test

Background: Previously I have tested a few different charge pipe products from aftermarket vendors as well as the stock GTI parts. When I was contacted by Vargas Turbo about possibly testing their charge pipes I decided it would be interesting to see how a silicone charge pipe fared against the metal and plastic versions. As

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Mk7 GTI Trackslag vs ARM Downpipes

Trackslag vs ARM DP – Street Data

Background: This post addresses testing of two popular downpipes for the Mk7 GTI, a Trackslag catted downpipe and an ARM Motorsport catted downpipe. Previously the Trackslag and ARM downpipes were flow tested and also tested for how they affect turbocharger boost onset. Test Procedure: The GTI is equipped with each downpipe and then driven in

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