ISR Performance Nissan 350Z CNC Billet Diff Brace

The ISR Performance CNC billet differential brace for the Nissan 350Z and Infiniti G35 adds a second mounting point to the rear differential, which the factory never gave it. The OEM design hangs the back of the diff off a single rear stud, so under hard launches and power-on cornering the differential rotates and the driveline flexes. This two-piece billet aluminum brace locks that movement down.

What it fixes

• Differential rotation under torque
• Driveline flex and the associated clunk on throttle transitions
• Vague feel when getting on and off the power

With the brace installed on the opposite side of the rear stud, the diff is supported at two points, flex is drastically reduced, and the rear end feels more positive and firmer whether you are drifting, drag racing or just driving hard.

Design

• Two-piece CNC machined billet aluminum
• Works with the OEM 350Z and G35 differential covers
• Also clears the larger finned NISMO differential cover
• Subframe spacer sleeve included for correct alignment

Fitment

• Nissan 350Z, all years
• Infiniti G35 Sedan, 2003 to 2006
• Infiniti G35 Coupe, 2003 to 2007

What is in the box

• 2 piece CNC billet diff brace
• All necessary hardware
• Subframe spacer sleeve

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