Quality should be great. I have heard a lot of great reviews about them. They are like the Dr. Gas x pipes but with no welding involved.
How well do they work? Do you think it would be good to run on a daily driver?
No drone here with MagnaPacks.
Had the same thing happen to me this past summer. Tried to fix it myself, don't try this, and ended up replacing the window and motor.
Another vote for Dr. Gas
His name on here is 03trubluGT. I am in the process of buying one of these and will prolly retune afterwards, just don't know when this will be.