Removed the rear wing from your '02-07 Impreza and can't figure out how to keep the trunk from flying open? Here's your solution.

These torsion bars were used on wingless Imprezas from '02-07 and feature a lower spring rate, suitable for trunks without spoilers.

Conversely, STis and other Impreza models with spoilers utilize a stiffer torsion bar that provides enough grunt to open a trunk with a heavy spoiler on the back.

Note: not for use on cars with rear spoilers.