Today I got catalytic converter removedbecause it was chocked from my vitz 09 added 2 inches downpiping and a muffler now the car is making way to much noise which is unbearable and I think some of it is coming from the engine also.
Can someone here help me about what should be done to make the noise smoother and a sporty sound like many cars do with downpiping.
Kindly help me out here guys what should be done