After numerous cleaning sessions over the years with a k&n cleaning kit!.. I decided to replace the oem gruppeM k&n filter with a new one as I felt no real difference cleaning the old one!.. I was shocked in results!!.. Just on idling the car sounded different!.. Even with a-little bit of throttle the sucking from the new k&n filter was louder as-well as the idling from the exhaust.. After a test drive I noticed the difference straight away!!.. The car was more responsive & the rpms was flowing more freely.. The car was definitely pulling more stronger!
After cleaning the k&n filter!.. No difference in colour!!.
Old filter left & new filter right!.. Notice the difference in colour!!..
The inside of the gruppeM was filthy..
The intake/hoses was also filthy!..
After a good clean with soapy water..
After cleaning the k&n filter!.. No difference in colour!!.
Old filter left & new filter right!.. Notice the difference in colour!!..
The inside of the gruppeM was filthy..
The intake/hoses was also filthy!..
After a good clean with soapy water..