ARM Motorsports 4.5" Catless Downpipe Flow Test - Stock Exhaust Transition

ARM 4.5 inch DP Flow Test

Background: The ARM 4.5 inch DP for the Mk7 was recently released, and ARM Motorsports contacted me to ask if I would conduct a flow test with the new downpipe. This downpipe is unique in terms of size, which piqued my interest in testing it to see how it compares with some of the other […]

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Investigating Fact or Fiction

Understanding EQT

Introduction: The marketplace for aftermarket automotive parts is replete with examples of exaggerated claims and scant evidence in support of “performance” parts advertising. Generally flying under the radar of Federal and State consumer protection agencies, questionable advertising claims are not uncommon. EQT caught my attention when it claimed to have one of the best-performing products

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