This muffler was specifically designed for a backdate to the st look. It is manufactured for mid-range and top end performance, all without drone inside the cabin. It seamlessly mates to ssi heat exchangers for added performance while keeping the cabin warm in the winter. The muffler is vastly different than the common baffle plated mufflers stuffed with packing material that are common in the aftermarket. Ours are uniquely made with double perforated sound absorption tubes based on the halbgegenstromprinzip (half counter current principle). The acoustic silencer absorption tubes are made in a trapezoidal pattern and are perforated with varying diameters, which isolate and dampen the unwanted frequencies that create drone. These perforated tubes present much less flow restriction than baffle plates at higher gas velocities, and consequently translates into larger horsepower and torque gains throughout the entire rev range. The resulting sound exhibited is a sonorous, linear-firing-order dominated flat 6 Porsche sound, which also gurgles and crackles off throttle. The exhaust tips are a dual round 2.75 (70 mm) design that are double walled to dissipate heat. So, they won 't tarnish as quickly as single walled tips. The design fits a st style factory cut out perfectly. Sold individually. 1 necessary per car.

This item may need to be sourced from Germany and would take 2-4 weeks to arrive. Once ordered it cannot be canceled. Please call to check stock or request expedited shipping.