I took the Dart to the exhaust shop today. He was impressed with the TTI setup, but it's super tight. There are small bends here and there making it difficult to fit a resonator anywhere. There are paper thin sections where the exhaust may hit on the torsion bar and idler arm areas. The only thing he could recommend was replace the 14" Dynomax Ultraflows for an 18" muffler. Thinking about it, it may work out. The longer muffler should dampen the exhaust (tad quieter) and reduce heat (in the muffler). He quoted me $450 for a set of Magnaflows and labor.