i owned Wira 1.5se a/back. Recently i have problem with exhaust sensor and i have replaced it. The problem is after replaced exhaust sensor check engine light up when the rpm goes up 4000rpm. Does it effect my wira performance and how to solve it?
Is it legal to drill some holes in the exhaust pipe near the end to make the exhaust louder?
doe it work like this? Is this how exhaust pipes can be modified to amplify the exhaust sound?