Yes BCs, and they are awesome...The grip is amazing, and the ride is not much worse than stock. I'm rolling 6 clicks from fully soft. I am just aching to get the car on the track. I have also upgraded sway bars, and have not yet gotten a chance to play, with all the upgrades on the car. Hopefully I'll get another chance to autoX soon. So far every time the events come up, something else happens, to ruin my chance of getting out there.