BONRATH POWER-ROHR The Power-Rohr replaces the inlet pipe between the metering head and the throttle body. As it has a bigger diameter than the original plastic tube, it improves the performance of the engine. For example, a VW Golf I GTI fitted with a BONRATH Power-Rohr and a K&N air filter shows a marked increase in power and the engine has more mid-range torque and upper range deeper sound.

 
 

 

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