i got the replacement filter because i want to keep the stock airbox and it fits perfectly. i removed the resonator and routed a 3inch flex hose to the front of the car for cooler air and the car runs alot better.
A mate of mine got the typhoon kit and the only drama was to trim the hose to fit the throttle body but otherwise, the installation only took us about 1hr or so.
current waiting for the progress springs to arrive from the states (12 weeks ground shipping). been hearing good reviews about them and cant wait to put them on the civic.
cheers
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