ISR Performance OE Replacement Turbo Inlet Stud Nut (Single Nut)

The ISR Performance OE Replacement Turbo Inlet Stud Nut is the matching nut for the turbo inlet studs that secure the turbine housing to the exhaust manifold. Sold as a single nut, so you can replace one that rounded off during removal or buy a full set alongside new studs for a clean turbo install on a Nissan 240SX.

Details

• OE replacement style turbo inlet stud nut
• Sold individually
• Pairs with the ISR OE replacement turbo inlet stud, listed separately

Why not reuse the old ones

Turbo flange nuts sit inches from the turbine housing and spend their lives at exhaust temperature. By the time a turbo comes off, the original nuts are usually corroded, rounded, or have threads that have galled onto the stud. Reinstalling them invites a flange leak, which costs boost response and makes the engine bay sound like a sewing machine. New nuts seat on clean threads and hold their torque through repeated heat cycles.

Installation tip

Apply high-temperature anti-seize to the stud threads, torque the nuts in a crisscross pattern, and recheck them after the first few heat cycles once the turbo is back in service.

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