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?
I have a one big problem here. I'm using Kancil fitted with JB-JL engine 659cc. I've upgrade turbo to L902s (JB-DET). Recently i've install 4pc 240cc injector, Walbro 255l/h, Sard Fuel Regulator, FCD and SAFC 5...