SPC Performance Porsche Adjustable Trailing Link PairUpgrade the front or rear non adjustable factory trailing arms on your Porsche 996 and 997 with this pair of fully adjustable arms from SPC Performance. Constructed from forged 6061 T6 aluminum with a hard black anodize finish, they adjust with an easy to reach threaded adjuster and maintain factory ride with SPC's xAxis sealed flex joints which eliminate binding and bushing compliance. When you install these links on the front, you will be able to