Quote:
Originally Posted by Jason@DSG
The overpipes and cat/test pipes (front pipes) only change the sound minimally. The actual cat-back piping (design and diameter) and muffler setup affect the sound the most.
Over and front pipes will cause more in-car drone (unless they're resonated like the ARK or similar) rather than change the final exhaust note. A straight front pipe no cat will add a bit of volume.
|
With my setup, the sound changed a LOT going from the catless front pipe to the stock front pipe with the same catback (Q300). Now the stock front pipe does have that wierd lunch box on the back, not sure what that is. Perhaps you are comparing between aftermarket pipes only?
Both setups I ran had no drone. Maybe this due to the Q300, which is considered quiet for an aftermarket system.
From wparsons response, I would expect an aftermarket catted front pipe to increase the volume over the stock front pipe, but would it increase the volume as much as a catless front pipe?