The design of this vehicle played a major role in the development of this 69-Series Kit. "There was not a whole lot of room in the engine bay," said Adriaans. "We designed this K&N Kit (69-4900TS) so the K&N Replacement Filter (RC-9350) is placed on top of the engine, where the original air box was. The Opel Astra also has a better throttle response with the K&N Typhoon Air Intake."
With all K&N 69-Series Typhoon Air Intakes there is a thorough development procedure which requires the use of multiple test vehicles. "The Opel Astra is one of the best selling cars in Europe," Adriaans said. "Finding donor vehicles was not a problem."
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