ISIS Subframe Collars for your Nissan 240sx. This eight piece aluminum collar kit is mounted on the top and bottom of your rear subframe for increased rigidity. The top collar is slotted so you do not have to drop the entire subframe for install - only remove bottom bolts.

Highly recommended as one of first suspension upgrades you do as stock bushings are worn out by now.

Helps Reduce Wheel Hop and clucking noise that is heard from a lot of older 240sx's.

GREAT UPGRADE!