Very, but you don't always need it, depending on what your doing.
How necessary is a torque wrench?
I hear a lot it has to be torqued to this spec and that spec. Just wondering if you need a torque wrench to do certain tasks on the busa.
Occasionally, I use German torque specs: gut und tight. Most of the time I use a torque wrench
You'll want 2. One that goes as low as 5 ft #s. One that goes over 150 ft #s. The smaller one should have overlap at its highest setting with the larger one at its lowest setting.
+ 1
Do a search on stripped oil pan drains...