I recently bought an external wastegate and the o2 housing to go with it. Let me first say I understand the views regarding ebay on here and I took a risk, but I would just like to share my experience with it to help out other dsmers in the future. First off, I purchased the 38mm external wastegate from Godspeed for $75.00 shipped. It arrived 4 days later in a box packed up very nice. It came with all nessary gaskets and bolts, 2 38mm flanges, an 8 psi spring, an 11 psi spring and a 15 psi spring. The quality on everything appeared to be very good. I put the 15 psi spring in and tested it out using a blow gun and it worked great no leaks and held pressure. Next came the o2 housing. I got it from foward automotive off ebay as whell. It cost 150.00 shipped and also arrived 4 days after i ordered. The quality appeared to be very nice, it had very nice welds and thick flanges. Also the o2 bung was even in the right place! It bolted right up to my 16g, it came with gaskets and bolts that actually threaded in nice! I installed it after taking my flapper out and porting the hotside. Now ive had it on for a week, no exhaust leaks or boost creep. it opens at 15psi and holds it to redline. I could not be more happy with this setup. I will post back in a few mounths to say if ive had any problems.