1 Set of Classic American Thunder rear mufflers from Flowmaster - aggressive sound - with 4" (101.6mm) highly polished high-grade steel tips.
Flowmaster mufflers have a unique, in the scene much admitted and loved dark sound.
Flowmaster promises Power gain with these mufflers - e.g. Torque increase.

A soundclip may be found e.g. under:
youtube.com/watch?v=TEsS4hm7H7A&feature=fvw
youtube.com/watch?v=nMVQVpixg_w
youtube.com/watch?v=ne9xekQ9LUE

Suitably for Ford Mustang GT 4.6L V8 & Shelby GT500 2005-2010 (including Convertible).

Complete with 2 clamps and a detailed fitting instruction in English.

These mufflers do not have a TÜV approval, ABE or European Union identification.