Drilling holes in a stock exhaust on a 2005 Suzuki Boulevard C90 with fuel injection could have negative effects on the performance of the motorcycle and may even cause damage to the engine or other components.
The exhaust system on a motorcycle is designed to work in conjunction with the engine to create an optimal balance of power and efficiency. By drilling holes in the exhaust, you are changing the way that the exhaust gases flow out of the engine, which can disrupt the engine's carefully calibrated air-fuel mixture and lead to a number of problems, including:
* Reduced power and torque
* Increased fuel consumption
* Engine overheating
* Premature engine wear
* Increased emissions
* Loud or unpleasant exhaust noise
In addition, drilling holes in the exhaust may cause the motorcycle to fail an emissions inspection, which could result in fines or other penalties.
If you are looking for a way to modify the sound of your motorcycle's exhaust, there are a number of aftermarket exhaust systems available that can provide the sound you want without compromising performance or damaging your engine.
