what are the benefits of upgrading my flywheel?

None, take yours out.

I haven't had a flywheel for years never had a problem.

the stock one at high rpm can explode and is heavy. I wouldn't pull it apart to just upgrade flywheel but if doing a clutch then yes do it.

Aftermarket is usually stronger and lighter. Less rotating weight can free up some horsepower.

^ lol uh... first 2 comments... pretty sure a flywheel is needed, correct? would imagine shifting could be a little unstable without one.

lol that would be correct, is needed. I believe they are busting your *****...

I don't know about the flywheel *exploding* but a lightened flywheel does have the benefits of less rotating mass, which means two things:

A. The motor will rev quicker.
B. The less weight will allow the compression to slow the motor much quicker.

In short, at the track this may make rev matching a bit more of a challenge for those of you that do so.

+1, on freeing up power, and revving quicker. you may lose a bit of torque with a lighter flywheel

i have driven a couple cars with lighter flywheels. no thanks. ill stick with stock.

y?

If you guys start crying about lightened flywheels...........I'll get you a box of tampons.

It all depends on the setup. I prefer my insanely light exedy triple setup, but I can drive cars with heavy flywheels just as well.

p.s. I've never heard of a stock flywheel exploding *laughs*

what does the flywheel change? i understand the basic principle of them but not how they are applied

it stores inertia

Weight, specifically rotational mass of the crank, which affects how fast the car revs, how much load is put on the engine (and in turn, how fast the turbo spools). Lighter flywheels tend to dyno higher, but not always perform better.