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?
Using td04, wif intercooler and bov etc..the problem is that at 1-3 gear..i dint get any boost...only when at 3rd gear, and when speed is near to 100kph,then the boost slowly creeps up..at 4th gear i dint get any...