The M840T Was Built To Scream. Stock Muffles It.
Twin-turbo V8. Race-derived valvetronic system. Let it breathe.
720S F1 CATBACK EXHAUST
Stock is tuned for pedestrian noise limits. We're not.
This Build
The Full Lineup.
T304 or Titanium?
Both are the same system. Different material. Here's what changes.

