is this an upgrade... i bought one at a good price from a friend and installed it i see they weigh 4 pounds lighter than a stock driveshaft does this help performance whats the big deal they cost $225-$255 new are they worth it...
I haven't even installed it yet. It's still in the box. I should have bought 10-20 of them back then and then sold them now for $200 and made some good profit!