How much horsepower would a flowmaster exhaust give you?

I have a 06 charger daytona, how much more hp would it be with the exhaust?|||Zero. Zero horsepower. A muffler is not a power adder. What really happens is the muffler allows the engine to expel its exhaust gasses easier, therefore allowing the engine to use the horsepower it makes more efficiently.

Lets say the engine makes 300 hp. It uses 10 horses to push the exhaust gasses out through the restrictive factory mufflers. A performance muffler might only require 4 horses to push out the same amount of exhaust. This allows 6 horses now to go to the acceleration instead. Does the car make more power, No. Does it use the power better with a performance system, Yes.|||Performance mufflers do increase power - the scavenging affect or certain mufflers will increase flow by working with the four cycle engine to draw spent exhaust. A performance muffler will add between 5 and 10 hp - dyno proven. not speculative. The design of the exhaust tubing is critical as well.

Report Abuse

|||Just the muffler? Maybe a couple. Full exhaust system? Probably 10-15.