ISR's Aluminum Rear Strut Bar is a great addition to your 89 - 94 Nissan 240sx S13. Part number is IS - RSTB - S13. We've added strut bars to our chassis and suspension lineup. This strut bar reduces chassis flex and stiffens strut towers, enhancing your car's handling. Inside the box, you'll find an aluminum strut bar with mounting plates. Note that all ISR Performance products are for off - road use only. In California, it's legal only for racing vehicles that can never be used on public highways or registered/licensed for highway use.

How to use: First, make sure your vehicle is parked on a flat and stable surface. Then, use the appropriate tools to remove the existing parts in the rear strut area. Install the aluminum strut bar with the included mounting plates firmly. Check all the connections to ensure they are tight. Note: This product is only for off - road use. In California, it can only be used on racing vehicles not for highway use. Don't try to use it on public roads to avoid legal issues. Maintenance: Regularly check the strut bar and mounting plates for any signs of looseness, damage, or corrosion. If you find any problems, tighten the connections or replace the damaged parts promptly.