How much horse power and torque will edge cts tuner and pacesetter long tube headers, and true dual exhaust be good for on a 2000 5.9 magnum be good for

 

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honestly maybe 20hp...but it might feel like more due to getting rid of the death flash on your pcm from the factory.

 

you might even lose some low-end power with that exhaust set up....it'll sound mean, but others have reported that their truck feels slower off the line with long tubes and true duals...that set-up does tend to be better if other performance mods are done to the engine (intake, heads, cam, roller-rockers, etc.)

 

long tubes are good for low end torque, but with true duals... without an x pipe it will be a loss of hp, not a gain.