C
CBDFLY
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i have a DP and an exhaust with no cats(Random Tecgnology). it is just a smooth system. did i gain anymore horsepower than a system with cats? not as loud as i thought it would be? but with the ttc mod it has a mean growl. does this motor require a specific amount of back-pressure to operate at its peak? is there a specific back-pressure that has been tested for peak horsepower?
later carl
later carl