If you've ever wondered if straight pipe affects your car, the answer is yes... and no. It all depends on how you use it.
If you're simply replacing a damaged or cracked exhaust pipe with a new one, there's no need to worry about any adverse effects on your vehicle. However, if you're removing catalytic converters or other emission control devices from your car, that's when Straight Pipe could start to cause problems.
Generally speaking, Straight Pipe will increase your car's horsepower and torque output due to the fact that there are fewer restrictions on the exhaust flow. This can be beneficial if you use your car for racing or performance driving; however, it also means that your car will produce more emissions – something that can be detrimental to both air quality and public health.
So while Straight Pipe won't necessarily harm your car, it's important to be aware of the potential consequences of using it before making any decisions.