ISR Performance Full Subframe Solid Inserts - Nissan S13/S14/Z32

ISR Performance full subframe solid inserts fit the Nissan S13, S14 and Z32 and fill the voids in the factory rear subframe bushings. The stock bushings are soft rubber with large hollow sections, and after decades of use they let the whole rear subframe shift under power and during cornering. That movement shows up as a vague rear end, clunks on throttle changes and inconsistent rear alignment.

How solid inserts work

Rather than pressing out the factory bushings, which is a major job, the inserts install into the existing bushings and lock the subframe to the chassis. The result is a rear end that responds immediately, with the differential, arms and knuckles all moving as one unit relative to the body. Drift and track drivers value the predictability; street drivers notice sharper turn-in and less wheel hop.

Benefits

• Eliminates subframe movement without removing the factory bushings
• Full set covers every subframe mounting point
• Improves alignment consistency since the subframe no longer wanders
• Reduces wheel hop and driveline shock on launch

Applications

Nissan 240SX S13 and S14, and Nissan 300ZX Z32.

Install notes

Supporting the subframe and lowering it slightly gives room to fit the inserts. Expect a noticeable increase in noise and vibration transmitted into the cabin, which is the trade-off for a fully located subframe.

All ISR Performance products are designed for off-road use only.