Post by
r34 gtr »
https://forums.nicoclub.com/r34-gtr-u3863.html
Fri Dec 08, 2006 10:39 am
its a whopping 4" dude. i have the same one. kinda makes you want to not run a filter with that sweet design right? anyway, i just wrapped a cut up inner tube from a bicycle around the smaller OD filter until i could clamp the 4" hks rubber coupling down on it. its been like that for ~12k miles with no problems whatsoever.
edit* - remember dude, macguyver is your friend.