Few Tips
Just installed the stage 3...couple tips...have a dremmel type grinder handy, because the back holes on the frame supports sometimes don't line up, so need to grind down approx 1/8" on one side. Also, when reinstalling the stock exhaust mount, you will most likely need to redrill and tap the bottom hole.
You'll need a 1 5/16 socket to torque down the air bumps......had to run out and buy this one while doing the job.....
Have Fun!
Brian