You mean is it worth the Extra $75? Sure, $75 is nothing if you have a decent paying job.
Is it worth it going from steel to aluminum?
Sure, if you're one of those people that need every little ounce of power.
"It's one of those that is good when you are heavily modded and cant think of any other mods to do. it get you like 3rwhp max lightly modded and maybe 5rwhp heavily modded.
It is lighter than the stock steel drive shaft up freeing up torque required to get everything spinning allowing the engine to turn quicker.
Slightly quicker revs, but w/ 3.73s or 4.10s you wouldn't notice it.
Less vibration in the drivetrain. You'd notice that.
One thing I did like about it though was that under normal cruising, if I was speeding lets say 50 in a 40, I could let off the gas and because light weight doesn't hold inertia as well, my speed would drop quicker. (great when going over that hill and dont know if there is a cop on the other side
" - Found that on another thread.