just like the title says. i want to trade my megan racing catback exhaust for a stock exhaust system. my exhaust has a catalytic converted welded into it so i will also need your manifold with the cat attached to it(i will give you my y8/z6 stock headers) or the cat attached to the bottom. it really depends on what combination you have. pm me numbers and location. the only thing wrong is you probably need to replace the gaskets. did i mention its a really really light exhaust system. may need some cash on top.