Have you realized that bigger is not always better? Here is a solution -"Power Squeeze" venturi tubes are designed to boost low & mid range torque, without losing top end power. Especially effective in 3" and larger exhaust systems. The "Power Squeeze" venturis slide into your existing collector or pipe and BOLT-IN. The venturi effect allows for better scavenging and makes it possible to fine tune for maximum torque and horse power, and reduces the likelihood of reversion. Experience faster acceleration, lower E.T.'s faster 60' times and more power coming out of the turns.

*Creates a venturi from backpressure

*Back-pressure is increased at low speeds resulting in increased low RPM power and torque.

*Increases exhaust gas velocity at high speeds.

At low speeds, the tapered venturi increases back pressure resulting in increased low RPM power and torque. At high speeds, the venturi effect increases exhaust gas velocity. This maximizes engine power by increasing the rate at which the exhaust gases are drawn from the exhaust ports.

Laymen description: Imagine water flowing through hose, if you pinch the hose, the increased back pressure accelerates the speed of the water.