I ran BC BR series on my Mazda for years and many miles.

They're a budget setup. They're good for slamming an auto, but not much more than that. They have a wide range of adjustability built into the dampers, but they're pretty much feel-good adjustments and overall, they don't dampen well or perform well on a shock dyno. If you want performance, bark up another tree, but prepare yourself to pay considerably more. If you just want to lower or slam your ride, BC coilovers are pretty trusty and should endure for at least 1,000 dollars worth.
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