ahhh ... the H.
It's Variable Timing Electronic Control. No H

I was going to respond to this piece by piece but the other guys said it far better than I could. I however, am not a fan of DC Sports headers. Sure, for the buck they're all right. They're right about the motor. If you have a 1.6 ltr B16 motor, dont swap. If you do, at least sell the B16 to cover half the cost of going to a B18. You can see the engine code to the left of the header stamped on the block. If its a B series, beef that up and dont worry about it. It'll have balls if done right. As far as it being rice, theres a HUGE difference between IMPORT and RICE. For further examples check out pages like www.ricecop.com. Either way, I think you made a wise choice on a del sol, they're fun cars. As far as a glass top ... I had one, keep the stock one. Those things let in the sun and it gets hot quick. That way you can go back and forth when it gets hot or cold during the year.