I have full TTI exhaust on both of my darts. One is H pipe, one X pipe. Both are connected to stock manifolds. When you order you will need to provide your manifold casting numbers.
Everything fits awesome but you will need to do a little work if your putting exhaust tips on. Only other thing worth noting is the shift linkage will hit so it needs some modding. Flipping the linkage over works in most cases. Also, if your running original style kickdown you need to modify the Linkage where it connects to the bell housing. Its very easy to do and they provide instructions. The KD mod may only apply to the 3 pc kickdown, I cant remember.