This is an install of our unique ‘H-box’ mid-muffler on our 2005 GTO, which contains an ‘H’ style balance tube within the muffler. This car also features our…
This is an install of our unique ‘H-box’ mid-muffler on our 2005 GTO, which contains an ‘H’ style balance tube within the muffler. This car also features our…
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