My One Thousandth post. The irritation of "souped up" cars.

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One relatively cheap and easy way is to change the intake and exhaust. The best performing exhaust systems have very little impeding the airflow. Mufflers that are real quiet are very restrictive to the airflow and are terrible for power. In fact, the best exhaust for power would have no muffler at all.

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Doesn't adding a larger exhaust usually kill all the bottom end out of those economical Japanese low-torque engines (no exhaust scavenging)? In California, you see a lot of [censored] Hondas with an enormous exhaust, loud as hell and it accelerates like a Volkswagen.