Remember there will be sacrifices to be made. The loss of low end torque in exchange for top end power. In general racing you will be spending more time in the upper RPMs so some parts are designed in this manner. Piping size, muffler design & exhaust routing (tuned exhaust) is the only way to get the best performance to specific needs. Most off the shelf systems were made to make power, but not always be the best design for every situation.
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