If i put a straight pipe on my bonestock d16 civic will it make it louder?

Question

If i put a straight pipe on my bonestock d16 civic will it make it louder?

Answer 1

Yes and it will also make you illegal, both for noise and pollution controls. It may also foul up the computer and cause the engine to run erratically. The cat and the O2 sensors in the exhaust feed info to the computer to help control the way the engine runs.