Yes, you are confused
smokeurass With a good driver a mk3 can easily be in the 14's with some washers on the wastegate and a manual BC, thats about $50. Why is everyone so obbsesed with these cars? Like i've tell people all the time, "it's a supra thing", you'll just have to own one to find out why people love them. Back onto topic now, yes the targas are heavier, it requires some bracking when you cut out a section of the chassis. Don't worry about the weight, that's what adds to making the car so stable at highway speeds, instead just add more power, the 7M will put out more than you'll ever need for a daily driver with proper tuning. I actually wasn't going to reply to this because of that blow off valve question

but yes they come with a BOV, like 99.5% of turbocharged vehicles.