HELLO BOYS WRITE FROM ITALY, I HAVE A CARRERA 3.6 THE 2003 KIT WITH 345 hp, now I want to make some adjustments. First of all I WANT TO RAISE THE SOUND, AS IT WAS IN THE PAST, SO I WOULD LIKE TO WORK ON INTAKE AND EXHAUST BUT WITHOUT SPENDING TIME. THE AIR FILTER I modified the original box, making holes to 25 mm from the side toward the rear. WITH THAT I HAVE ALREADY NOTICED A BETTER RESPONSE TO ACCELERATOR. What do you think Has anyone ever made a change to the original box?

 

Uppppppppp .

 

Nobody has ever done this change?