I have the Stillen exhaust for my 90TT and the exhaust tips were damaged and instead of dropping $1,000 on a new exhaust, I want to just have the tips replaced. I called Stillen, and they are willing to sell me just the quad tips for $175 EACH, but that seems a bit expensive. I tried to find out who supplies their tips, but I don't know who. I want to find a comparable QUALITY set of tips. The tips should look similar to these. If $175 each for GOOD quality parts is a fair price, then I am fine with that. Thank you in advance.