Instillation was about 1.15 mins on my 2008 Shelby gt 500. I used the factory mufflers.The car sounds great with a deeper exhaust sound with most of that popping out the tail pipes gone.Sounds more like a car from the 60-70 era.Had pype bomb mufflers with drone. There is none with this combo with a deeper tone.If you have no emission problems this is a great set up. The power is a increase over the restrictive cat.You do have to get the o2 sensors shut off.
Review by Bobby /
(Posted on 6/8/2014)
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