So it's time to do a turbo upgrade on my 91 TT, over 400hp on stock turbos isn't bad, but it is for the turbos. I'm wanting the GT525s, and I don't really understand the core return policy. What I've thought it was for a while is you send in your item and they modify it and ship it back. Am I correct? Or do you send it in and you get money off of new turbos? When you purchase the turbos, there's a drop down and you can select sending cores first or +$200 to send them later, so you have to turn in yours? Idk. Anyone know?
