Originally Posted by Thomaszhuu

Hello I am hoping someone can give a second opinion/ suggestions for my issue I’ve been trying to figure out for some time. I’m experiencing aggressive vibration/shaking on the floor, seat, shifter and steering wheel when accelerating past 140km/h (87mph). I rechecked alignment, tire balancing and re torque suspension/mount bolts, no play in suspension components.
2019 370z 6MT 44,000km (27,340mi)
- SPL FUCA
- SPL rear camber and toe arms
- bc coilovers
- aftermarket wheels and brand new tires less than 1000km with correct hub centric rings
- hotchkis front and rear sway bars
- stock bushings
Alignment spec:
Front
Camber -1.5°
Caster 5.1°
Toe 0.08°
Rear
Camber -2.9°
Toe 0.14°