Like I mentioned in my previous post, the problem lies on the Catalytic Converter. All car should smells the same after they replace the Catalytic Converter with a bullet or midbox which both of them function act as a resonator instead of reducing toxic in emissions.

Even buddy "acbc" mentioned that his ride got strong petrol fumes after decat, even my ride aswell. If you're an environmental friendly guy, you should put back the catalytic converter but bear in mind you might lose out some performance as the catalytic converter is pretty restrictive.