Need Help On A New Gearbox

[R33_Rob]

my gearbox is about to sh*t itself.

So i have the option i can either:

A- Buy a good quality second hand N/A gearbox

B- Get a DET gearbox so it is stronger

C- Prehaps get a brand new box (How much is a brand new gearbox????)

and how much should i expect to pay for a good quality second hand RB25DE gearbox

cheers