This guy I do business with has a company that makes excellent headers, exhaust systems, manifolds. He's talked about making a pair of manifolds for the F355 at $3,998.00 with a 1 year warranty.With group buys offered at $2,998.00 with a 1 year warranty. I know alot of people on here have a problem with their factory manifolds. Either way I'm just seeing how many people would really be interested in aftermarket quality manifolds with a warranty. Westlake Village Cali, is where he is located, if you guys have any manifolds laying around you can spare, he can make some prototypes. He allways has his parts in stock also, so there wouldn't be any turn around time from the time you ordered. Mods- will not say his company name or give any information that would lead to a purchase, I am just gathering up interest. If there is enough interest he would gladly become a sponsor.