Thanks! Definitely a work in progress I'm glad the vids helped.
I'm not sure on the power issue...if you do some reading on the "correct" exhaust size for your particular motor (I'm guessing mostly stock?) then it is a little too big. Even though the pipes are small the exhaust is as large as a 3"
So yes, you might lose some low-end torque but if you ever build the motor up the exhaust won't be the limiting factor