I bought mine used I think it was from a guy on this website site. You can just shop around. AMS told me the factory manifold held up better than aftermarket manifolds at this time. I would not buy a brand new one. I got mine off a 2008 GTS I think the guy said. Check eBay or the marketplace on this website or you can call AMS and ask if they have a used one. I deal with Dan up there and if they do not you can keep checking or you can leave your contact.

 

What's the highest hp can we get off the stock RA turbo