Roush's all-new axle back exhaust kit for the 2005-2010 Mustang GT and 2007-2010 GT500 features an open-chamber resonator design rather than the more common fiberglass packed muffler. This Roush kit is constructed of 409 Stainless Steel for great corrosion and oxidation resistance. They are mandrel bent in order to maintain full interior diameter though the system which allows for better air flow.
The kit features an all-new 4" dual wall tips made form high grade 304 stainless steel and are embossed with the ROUSH logo. They are chrome-flashed which is a process that eliminates chrome cracking, flaking and resists heat color changes.
This will provide your Mustang a deep, throaty and performance exhaust note that does not have the typical in-cab drone/
They are designed with OEM CAD data for perfect fitment. The axle back will mount to all factory points using factory hangers. There is no cutting required.