I called 5ZIGEN yesterday and they told me that it does NOT come with its own Y-pipe, therefore uses the stock one. It's not a catback exhaust - it's a Y-pipe back exhaust.
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 '12 370Z + Sport | Stillen Gen3 Intakes | Stillen UD Pulley | Motordyne M370 | FI Exhaust | FI HFCs | 4.08 Gears | Uprev tuned
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