I thought I had read that the 05/06 GT had a true 2.5" mandrel bent exhaust system. However, when I installed my Flowmasters this week, I noticed that the exaust pipe was flat on one side as it arched over the rear axle. It did not maintain its 2.5" diameter.
Did I read the specs wrong or could my 06 GT have a more restictive exhaust than advertised?