I have a Euro grey market, my original exhaust did have two individual manifolds and dual all the way back, the cars were retrofitted near the trans, I later took the cats off and had the Euro downpipes, new cost $80 each, then my engine went bad, I put an American exhaust single, no cat or resonator is needed for Euro since mine is waived from all 50 state emissions

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1994 Ford Taurus SHO
1999 Kawasaki Ninja ZX9R