I got a set of these the last time mx5parts had them on sale
I was looking for a new front strut brace that allowed me to get to the adjusters on the coilovers, and with them being on special I decided to get the complete set.
After already having coilovers and swaybars I found these made a noticeable difference in chassis stiffness.
I do get gearbox whine amplified by the PPF brace, but that's only noticeable when the roof is up (which is rare) and otherwise gets drowned out by the exhaust and tyre hum (R-comps) anyway
I will let you know about the Cosworth compatibility soon...
