Reinforcing the 6MT transmission

Originally Posted by NissanZ34

Hello fellow Z owners. My car has about 50 000km and 4th gear is starting to show wear signs such as being clunky when shifting and not being smooth.

Is there a way to bullet proof the manual transmission? I don't want to buy another OEM transmission that will fail the same way over time.

It's a street car but I'm hard on it. I like speeding and found out my car was speed limited at 240 kmh in 5th gear. Would there be a way to remove the speed limit at low cost? (The dealership is a relative and probably told the mechanic to put the limiter)

Modifications done so far:
I already have a Stage 2 clutch kit with the lightweight flywheel from Zspeed along with their CSC delete kit. GReddy GT Evolution catback exhaust and Fast Intentions HFCs are on the way. Also have a Mishimoto oil cooler kit. K&N drop-in filters with Mishimoto silicone intake tubes.

Sport and Touring package

Thanks