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2004 Gto Start

After disconnecting the negative battery terminal, we're ready to get started. A lift will make this install much easier, though it can still be done on jack stands. Once underneath the GTO, we can see the stock system, which measures 2.25 inches in diameter and has a total of four catalytic converters; clearly not the optimum setup for good exhaust flow. The SLP system replaces everything starting from the exhaust ports back to where the stock Cat-Back system bolts up (far bottom of photo). Either the stock exhaust or, in our case, SLP's Loud Mouth system will bolt right up--as will any other system designed to work on these cars.
2004 GTO - Back In Black, Part 7

 After disconnecting the negative battery terminal, we're ready to get started. A lift will make this install much easier, though it can still be done on jack stands. Once underneath the GTO, we can see the stock system, which measures 2.25 inches in diameter and has a total of four catalytic converters; clearly not the optimum setup for good exhaust flow. The SLP system replaces everything starting from the exhaust ports back to where the stock Cat-Back system bolts up (far bottom of photo). Either the stock exhaust or, in our case, SLP's Loud Mouth system will bolt right up--as will any other system designed to work on these cars.  View Related Article

 

 

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