When one focuses only on performance, then volume becomes a concern, however there is a limit to how far one can increase performance without increasing volume. Sound quality is greatly affected by many things; pipe size and layout, or silencer design.
While you increase power, you might be left with an disagreeable sound that leaves something to be desired, sometimes you want to be there quietly, sometimes you want to be noticed, sometimes you just want to feel the power...
The simple solution is Hybrid Exhaust System by Power Craft.
With the completion of our newly designed exhaust system, for the all time, selectivity of driving is available to all levels of drivers.