Quote:
Originally Posted by Pete156
Just wondering if you can explain why I have had my STI Gurney flap attached to the wing of my BRZ which I aquired in 2012 and have raced, auto crossed, and driven more than 20K miles (which you say will blow right off from the airflow if only attached with 3M tape as mine is)
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I don't know what material the sti flap is made of, I know the Perrin is a hard piece of metal that doesnt flex. The 3m tape is always going to be the weakest part of the system structure wise. Second, the sti flap slopes up slightly so the airflow can continue over the trunk and transition over the flap. The Perrin one goes straight up, creating a pinch point of the flow. The amount of drag and turbulence right there would be too much for tape.