BlueZeee

Hey guys I have a 2007 350z HR, I drove the car today and noticed something new, Once the car reaches 5000rpm the shifter starts shaking like crazy and makes a clunking type of noise. Sometimes this happens sometimes not. I havent been able to find any forums or videos online for this.. happens both when in gear or not. The modifications with the car is a clutch with lightweight flywheel, has stillen exhaust, stillen gen 3 intakes also the stillen shortshifter.
Any ideas what it could be? really don't wanna do a tranny rebuild Any input will help.
Thanks

dcains

iTrader: (15)

Get under the car and start inspecting all the rubber mounts that support the engine and drivetrain, front to rear. Replace the bad ones.

travlee

iTrader: (8)

but basic troubleshooting makes too much sense....